Pupisoma (Ptychopatula) dioscoricola (C. B. Adams, 1845 )

Hausdorf, Bernhard, 2007, Revision of the American Pupisoma species (Gastropoda: Pupilloidea), Journal of Natural History 41 (21 - 24), pp. 1481-1511 : 1483-1489

Pupisoma (Ptychopatula) dioscoricola (C. B. Adams, 1845)

( Figures 1, 2, 6 )

Helix dioscoricola C. B. Adams 1845, p 16 .

Helix punctum Morelet 1851, p 9 .

Helix caeca Guppy 1869, p 241 .

Pupisoma americanum Möllendorff 1899, p 91 [partim].

Pupisoma dioscoricola insigne Pilsbry 1920, p 39 , Plate 4 Figures 6–8 .

Pupisoma puella Hylton Scott 1960, p 29 , Figures 7–9 .

Helix –: Binney 1884, p 113, Plate 5 Figure L (according to Pilsbry 1920, p 37).

Helix dioscoricola: L. Pfeiffer 1848 , Plate 30 Figures 29–32; L. Pfeiffer 1849, p 240.

Helix (Conulus) dioscoricola: Tryon 1886, p 174 , Plate 53 Figures 46, 47.

Microphysa (?) dioscoricola: Binney 1890, p 196 , Plate 2 Figure 5, Plate 3 Figure 6 .

Thysanophora dioscoricola: Pilsbry 1894, p 57 ; Dall and Simpson 1901, p 379; Pilsbry and Brown 1910, p 517; Hinkley 1920, p 39.

Pupisoma dioscoricola: Pilsbry 1920, p 36 , Plate 4 Figures 1–5; Vanatta 1923, p 66, 67, 69; Pilsbry 1926a, p 103; Vanatta 1928a, p 21; Baker 1935b, p 88; Goodrich and van der Schalie 1937, p 30; Pilsbry 1948, p 1007, Figure 528(1–5); van der Schalie 1948, p 37, Map 13; Hylton Scott 1960, p 25, Figures 1, 2; Wilson 1960, p 137; Burch 1962, p 49, Figure 90; Branson and McCoy 1963, p 108; Thompson 1967, p 232; Smith 1971, p 7;

Quintana 1982, p 73; Hubricht 1985, p 12, Map 98; Ramirez 1991, p 5; Correa

Sandoval 1997, p 138, 140; Pérez and López 2002, p 100, Plate 15; Pérez and López

2003, p 417. Pupisoma (Ptychopatula) dioscoricola: Haas 1937, p 10 , Plate 1 Figure 24 [partim]; Haas

1960, p 16 [partim]; Baker 1961, p 33; Chase and Robinson 2001, p 42. Ptychopatula dioscoricola: Paul and Donovan 2005, p 120 , Figure 7a , Plate 25 Figures 1, 3, 4. Helix punctum: Fischer and Crosse 1872, p 228 , Plate 12 Figure 1; Martens 1892, p 131,

Plate 7 Figure 3. Helix (Microconus) punctum: Tryon 1887, p 53 , Plate 9 Figure 7 . Thysanophora punctum: Pilsbry 1894, p 57 . Helix caeca: Dall 1889, p 25 , Plate 1 Figure 9; Suter 1900, p 335, Plate 3 Figures 1–3. Helix (Acanthinula) caeca: Tryon 1887, p 55 , Plate 9 Figure 23. Patula (Ptychopatula) caeca: Pilsbry 1889a, p 200 ; Pilsbry 1889b, p 62. Thysanophora caeca: Pilsbry 1894, p 57 , Plate 16 Figure 4; Baker 1914, p 632; Clapp 1918,

p 75, Plate 8 Figure 3; Lange de Morretes 1949, p 136. Thysanophora dioscoricola caeca: Rhoads 1899, p 45 . Pupisoma dioscoricola insigne: Baker 1925, p 2 ; Pilsbry 1926b, p 78; Vanatta 1928b, p 66;

Bequaert and Clench 1936, p 65; Arias 1955, p 160; Basch 1959, p 12; van Regteren

Altena 1960, p 49; Correa Sandoval, García-Cubas Gutiérrez and Reguero Reza 1998,

p 14; Correa Sandoval 2000, p 8; Correa Sandoval and Rodríguez Castro 2002, p 235;

Correa Sandoval 2003, p 512; Correa Sandoval and Salazar Rodríguez 2005, p 59. Ptychopatula dioscoricola insigne: Tillier 1980, p 54 , Figures 45, 46, 49–52. Pupisoma puella: Quintana 1982, p 74 Pupisoma (subgenus?) minus: Haas 1960, p 16 , Plate 1 Figure B [non Pilsbry 1920]. Pupisoma minus: Oliveira and Almeida 1999, p 20 , Figure [non Pilsbry 1920].

Type material examined

Pupisoma dioscoricola insigne Pilsbry : lectotype (design. Baker 1962, p 11): USA, Texas: Brownsville , 25 ° 549N, 97 ° 309W ( ANSP 109013 ); paralectotypes: Mexico, San Luis Potosı´ : Valles Falls, 22 ° 019N, 99 ° 049W ( ANSP 141390 ); Choy cave, 22 ° 189N, 99 ° 059W ( ANSP 141391 partim).

Pupisoma americanum Möllendorff : lectotype (design. Haas 1937, p 10): Ecuador, Azuay: Cuenca, 2 ° 539S, 78 ° 599W (SMF 10697); paralectotypes: Ecuador, Azuay: Cuenca , 2 ° 539S, 78 ° 599W (SMF 10698 partim).

Other material examined

Mexico, Coahuila: 10 km SW of Zaragoza , 1100 m altitude (alt.), 28 ° N, 100 ° W ( FLMNH 211796 ) . Tamaulipas: Sabinas , 23 km NNW of El Limón, 60 m alt., 23 ° 019N, 99 ° 059W ( FLMNH 159224 ) ; Sierra Cucharas , 10 km W of Gomez Farias, 960 m alt., 23 ° 039010N, 99 ° 129300W ( FLMNH 190999 partim) ; 1 km WNW of Esperanza , 300 m alt., 23 ° 389N, 98 ° 219360W ( FLMNH 317136 ) ; Salto Del Tigre State Park , 30 km W of Santa Engracia, 350 m alt., 23 ° 599540N, 99 ° 209480W ( FLMNH 317093 ) ; Sierra De Tamaulipas, 7 km NW of Piruli , 350 m alt., 23 ° N, 98 ° W ( FLMNH 189710 partim) ; 9 km W of Gomez Farias , 700 m alt., 23 ° N, 99 ° W ( FLMNH 200155 ) . San Luis Potosı´: Tamazunchale , 21 ° 169N, 98 ° 479W ( FLMNH 35460 ) ; Ciudad Valles , 21 ° 599N, 99 ° 019W ( FLMNH 40040 ) ; 6 km W of El Naranjo , 340 m alt., 21 ° N, 98 ° W ( FLMNH 200115 partim) . Queretaro: 2 km E of Jalpan , 780 m alt., 21 ° 129590N, 99 ° 279380W ( FLMNH 200731 ) . Hidalgo: 5 km SE of Pas Flores , 340 m alt., 20 ° N, 99 ° W ( FLMNH 268668 partim) . Veracruz-Llave : 5 km ENE of Cuauhtémoc, 75 m alt., 17 ° 069590N, 94 ° 519100W ( FLMNH 211354 ) ; 1 km NW of Atoyaqullas, 7 km NNW of Paraje Nuevo , 750 m alt., 18 ° N, 96 ° W ( FLMNH 190939 partim) ; Cerro de Las Palmas, 1 km E of Berlin, ca 4 km N of Cordoba , 980 m alt., 18 ° N, 96 ° W ( FLMNH 190859 partim) . Puebla: 1.6 km NE of Chietla , 1400 m alt., 18 ° 319N, 98 ° 359W ( FLMNH 35458 ) ; Tepexic near Necaxa , 675 m alt. ( ANSP 256459 , voucher to Baker 1930) ; below Necaxa , 900 m alt., 20 ° 139N, 98 ° 009W ( ANSP 256460 , voucher to Baker 1930) . Tabasco: Teapa , 17 ° 339N, 92 ° 579W ( FLMNH 35455 ) . Yucatán: Tikúl , 20 ° 249N, 89 ° 329W ( FLMNH 19412 , voucher to Thompson 1967) . Guerrero: 1.3 km N of Playa Majahua , 50 m alt., 17 ° 479580N, 101 ° 449110W ( FLMNH 200185 ) ; 2 km NNE of Punto Troncones , 50 m alt., 17 ° N, 101 ° W ( FLMNH 211721 ) ; 5 km E of Naranjito , 480 m alt., 18 ° 049180N, 101 ° 489520W ( FLMNH 200683 ) ; 2 km E of Naranjillo , 430 m alt., 18 ° 049320N, 101 ° 459330W ( FLMNH 200672 partim) ; 3 km E of Naranjillo , 350 m alt., 18 ° N, 101 ° W ( FLMNH 211741 partim) . Oaxaca: Bosque Natural de Temascal , 1 km SW of Cedral, 100 m alt., 18 ° 239N, 96 ° 299W ( FLMNH 159487 partim) ; 1.5 km SE, 1 km NE of La Selva Uno , 100 m alt., 18 ° 269280N, 96 ° 309100W ( FLMNH 200483 partim) .

Bahamas: San Salvador Island, French Bay Pier, S coast, 11.1 km SSW of Cockburn Town, 4 m alt., 24 ° N, 74 ° W ( FLMNH 246602 ); Little Abaco Island, 0.4 km E of Foxtown, 26 ° N, 77 ° W ( FLMNH 39155 partim) .

Cuba: La Estrella Morro, 20 ° 069N, 75 ° 559W ( FLMNH 138749 ); Cárdenas, 23 ° 029N, 81 ° 129W ( ANSP 160512 ) .

Jamaica: Mandeville, 18 ° 029N, 77 ° 309W (ANSP 101399, voucher to Pilsbry and Brown 1910); Stony Hill, Saint Andrew 18 ° 059N, 76 ° 489W (ANSP 104491, voucher to Pilsbry 1920); 0.5 km W of Troy, 427 m alt., 18 ° 159N, 77 ° 379W (FLMNH 116008); 1.2 km N of Good Hope House, 100 m alt., 18 ° 259N, 77 ° 419W (FLMNH 210130 partim); Montego Bay, 18 ° 289N, 77 ° 559W (ANSP 101398, voucher to Pilsbry 1920); Orange Hill, Montego Bay (ANSP 104493, voucher to Pilsbry 1920).

Haiti: 2 km W of Saud d’Eau, 440 m alt., 18 ° N, 73 ° W ( FLMNH 32776 ); San Lorenzo, S side of Samana Bay , 19 ° 109N, 73 ° 009W ( ANSP 44672 ) .

Dominican Republic: Bani , 65 m alt., 18 ° 209N, 70 ° 239W ( FMNH 175643 , 175649 ) ; Cambita near San Cristobal, 35 m alt., 18 ° 279N, 70 ° 129W ( FMNH 175616 , 175651 ) ; Medina near San Cristobal, 18 ° 329N, 70 ° 089W ( FMNH 175648 ) ; Villa Trina near Boca ( FMNH 175644 ) .

Puerto Rico: canyon of Rio Grande de Arecibo, about 10 miles S of town (ANSP 256069, voucher to Baker 1961); Island of Vieques, 18 ° N, 65 ° W (ANSP 982, voucher to Tryon 1886).

Virgin Islands: St Thomas Island, Nadir Estate, 0.3 km SW of junction of Highways 30 and 32, 18 ° 199N, 64 ° 529W (FLMNH 119889).

Netherlands Antilles: St Eustatius Island , Base of White Wall, 17 ° N, 62 ° W ( FMNH 64300 , voucher to Haas 1960) .

Belize: Vaca Plateau , Caracol Archeological Monument, 600 m alt., 16 ° 459480N, 89 ° 069060W ( FLMNH 198424 partim) ; 10 km SE of Benque , 300 m alt., 16 ° 599480N, 89 ° 049240W ( FLMNH 207355 partim) ; 0.8 km NE of Benque Viejo del Carmen , 100 m alt., 17 ° 309000N, 89 ° 089180W ( FLMNH 146324 partim) ; 5.4 km W of Nuendorf , 100 m alt., 17 ° N, 88 ° W ( FLMNH 207203 ) .

Guatemala: 2.5 km NE of Puente Chixoy, 810 m alt., 15 ° 219320N, 90 ° 399100W (FLMNH 189992 partim); 8 km SE of Lanquin, 350 m alt., 15 ° 329430N, 89 ° 569490W (FLMNH 190121 partim); 4 km W of Lanquin, 330 m alt., 15 ° 349370N, 90 ° 019060W (FLMNH 190098 partim); 2 km WNW of Lanquin, 300 m alt., 15 ° 349380N, 89 ° 599190W (FLMNH 190074 partim); 10 km NNW of Camajo Grande, 680 m alt., 15 ° 419270N, 91 ° 559580W (FLMNH 190439 partim); 2 km SW of Nenton, 600 m alt., 15 ° 479520N, 91 ° 459420W (FLMNH 190480 partim).

Honduras: Choluteca, 13 ° 189N, 87 ° 110W ( FLMNH 34841 partim); Silca , 600 m alt., 14 ° 489370N, 86 ° 329320W ( FLMNH 212213 partim); Agua Azul, 1300 m alt., 14 ° 559N, 87 ° 589W ( FLMNH 34833 ) ; Magua Cave , 15 km SSW of Gualaco , 940 m alt., 14 ° 569300N, 86 ° 079300W ( FLMNH 194342 partim) ; 5 km NNW of Rio Tinto, 2 km NNE of Campo Nuevo , 500 m alt., 14 ° 579080N, 85 ° 429350W ( FLMNH 194503 , 212139 partim) ; 20 km NE of Copán, Rio Maria , 640 m alt., 14 ° N, 87 ° W ( FLMNH 221035 ) ; 0.5 km SE of Cerron, 28 km SW of Villanueva , 350 m alt., 15 ° 109150N, 88 ° 069270W ( FLMNH 224407 ) ; 24 km E of Jocón , 260 m alt., 15 ° 229080N, 86 ° 599360W ( FLMNH 212052 ) ; 2.6 km SW of La Brea , 100 m alt., 15 ° 459390N, 86 ° 009080W ( FLMNH 211988 partim) ; 7 km ENE of La Brea , 100 m alt., 15 ° N, 85 ° W ( FLMNH 221338 partim); 11.5 km SW of Francia, 50 m alt., 15 ° N, 85 ° W ( FLMNH 221435 ) ; 21 km WSW of Olanchito , 150 m alt., 15 ° N, 86 ° W ( FLMNH 221208 partim) ; 13.6 km NE of Jocón , 260 m alt., 15 ° N, 86 ° W ( FLMNH 221269 ) ; Roatán Island , 1.6 km E of West Bay Beach, 100 m alt., 16 ° 169540N, 86 ° 359290W ( FLMNH 224534 partim); Roatán Island , 2.5 km N, 3.0 km E of Oak Ridge , 250 m alt., 16 ° 249530N, 86 ° 209240W ( FLMNH 224483 ) ;

Nicaragua: 4 km N of Masatepe , 733 m alt., 11 ° N, 86 ° W ( FLMNH 34828 partim) ; 4 km SSW of Tuma , 700 m alt., 13 ° N, 85 ° W ( FLMNH 34831 partim, 34834) .

Costa Rica: 14.1 km S of Palmar Norte , 233 m alt., 8 ° N, 83 ° W ( FLMNH 34838 ) ; Turrialba , 667 m alt., 9 ° 549N, 83 ° 419W ( FLMNH 34836 ) ; Santa Ana, 1433 m alt., 9 ° 569N, 84 ° 119W ( FLMNH 34821 partim) ; San Isidro del General , 2100 m alt., 9 ° 599N, 84 ° 019W ( FLMNH 34837 partim) ; 0.8 km NNW of Colonia Carmona , 10 ° 009N, 85 ° 159W ( FLMNH 34820 ) ; Puerto Jesus , 10 ° 079N, 85 ° 169W ( FLMNH 34807 partim) ; Nicoya , 10 ° 099N, 85 ° 279W ( FLMNH 34829 ) ; Santa Cruz , 10 ° 169N, 85 ° 359W ( FLMNH 34822 ) ; La Lola, 47.2 km W of Limón, 10 ° N, 83 ° W ( FLMNH 34835 partim) ; 16.7 km ESE of Santa Cruz , 10 ° N, 85 ° W ( FLMNH 34830 ) ; 11.7 km E of Bahia Tamarindo , 10 ° N, 85 ° W ( FLMNH 34827 partim) ; 4.2 km S of Nicoya , 10 ° N, 85 ° W ( FLMNH 34812 ) ; 10 km S of Nicoya , 10 ° N, 85 ° W ( FLMNH 34819 ) ; La Lola, 47.2 km W of Limón, 10 ° N, 83 ° W ( FLMNH 34835 partim) .

Panama: Tonosi , 7 ° 249N, 80 ° 279W ( ANSP 162450 ) ; Capira , 8 ° 459N, 79 ° 539W ( FMNH 63723 partim); Pedro Miguel, 9 ° 019N, 79 ° 379W ( ANSP 161817 ; FMNH 63722 ); Juan Mina, 9 ° 109N, 79 ° 399W ( ANSP 45261 ; FMNH 63721 , vouchers to Pilsbry 1926a); Allee Creek, Barro Colorado, 9 ° N, 79 ° W ( FMNH 73509 ) .

Colombia, La Guajira: La Goajira Peninsula, 2 km S of Rio Hacha , 11 ° N, 72 ° W ( FMNH 296624 ) .

Venezuela, Lara: 3.7 km E and 4.7 km N of Tamaca , 680 m alt., 10 ° N, 69 ° W ( FLMNH 133190 ) . Carabobo: 2 km S of Borburata , 100 m alt., 10 ° 269000N, 67 ° 589160W ( FLMNH 246509 ) ; 2 km N of Petanemo , 10 m alt., 10 ° 279130N, 67 ° 559120W ( FLMNH 246502 partim) .

Trinidad and Tobago, Tobago Island: 1 km S of Crown Point Airport , 10 m alt., 11 ° 089550N, 60 ° 509130W ( FLMNH 226690 ) ; Union Village , 80 m alt., 11 ° 129230N, 60 ° 459140W ( FLMNH 226801 ) ; 0.9 km NE Belle Garden , 30 m alt., 11 ° 149010N, 60 ° 359460W ( FLMNH 226771 ) ; 3.7 km NE of Roxborough , 280 m alt., 11 ° 169250N, 60 ° 359150W ( FLMNH 226730 ) . Trinidad Island: 5.0 km SSW of Fyzabad, Morne Daisy Village , 10 m alt., 10 ° 119540N, 61 ° 359150W ( FLMNH 227142 ) ; Point Radix, 7.0 km NE of Mayaro (Pierreville), 3 m alt., 10 ° 209110N, 60 ° 599230W ( FLMNH 226909 partim) ; St Augustine, 10 ° 399N, 61 ° 249W ( FMNH 65415 , voucher to Haas 1960) ; Port of Spain, 10 ° 399N, 61 ° 319W ( ANSP 140635 ) ; Point Gourde, 110 m alt., 10 ° 409230N, 61 ° 379470W ( FLMNH 226490 ) ; 8.1 km ENE of Maraval , near Contaro, 100 m alt., 10 ° 429580N, 61 ° 289380W ( FLMNH 226253 ) ; 1.1 km S Santa Cruz , 100 m alt., 10 ° 439060N, 61 ° 289390W ( FLMNH 227218 ) ; 2.0 km NE La Platonia, Gasparillo Village , 100 m alt., 10 ° 439330N, 61 ° 279360W ( FLMNH 227188 ) ; Trinidad ( SMF 150031 , 259325 ) .

Suriname: Tambaredjo, 5 ° 509N, 55 ° 339W (NNM, voucher to van Regteren Altena 1960).

Brazil, Amazonas: Manaus, 03 ° 079S, 60 ° 029310W (ANSP 139135, voucher to Pilsbry 1926b). Ceara´: Serra de Baturite´, 4 ° 159S, 39 ° 059W (ANSP 109342, voucher to Baker 1914). São Paulo: São Paulo, 23 ° 329S, 46 ° 379W (ANSP 141386, voucher to Pilsbry 1920). Rio Grande do Sul: Taquara del Mundo novo, 29 ° 399S, 50 ° 479W (SMF 55285 partim).

Argentina, Salta: Lumbrera, 25 ° 149S, 64 ° 509W ( FMNH 216318 ) . Tucumán: San Miguel de Tucumán, park of the institute M. Lillo, 430 m alt., 26 ° 499S, 65 ° 139W ( SMF 164128 , 275438 partim) .

Shell ( Figures 1, 2)

Globose-conical; apex obtuse; body whorl with unequal growth lines crossed by fine incised spiral striae, sometimes with additional low riblets; upper whorls irregularly granulated; corneous; shining; subtranslucent; 2.5–3.25 inflated whorls separated by a deep suture; body whorl slightly descending towards the aperture, basally rounded; aperture truncaterounded, edentate; peristome neither expanded nor reflexed nor thickened; columellar margin triangularly dilated, more or less covering the narrow umbilicus. Shell measurements and ratios are listed in Tables I and II.

Remarks

Pupisoma dioscoricola can easily be distinguished from the other American Pupisoma species by its distinct spiral striae and its larger first whorls.

Möllendorff (1899) and Haas (1937) failed to note that there are two species among the type series of P. americanum Möllendorff, 1899 . The lectotype designated by Haas (1937) and some of the paralectotypes belong to the form of P. dioscoricola with distinct riblets, later called P. dioscoricola insigne Pilsbry, 1920 , the other paralectotypes belong to P. macneilli . Specimens with distinct riblets occur scattered throughout the range of P. dioscoricola and sometimes even sympatrically with the typical form. Therefore, the form with distinct riblets cannot be considered a geographical subspecies.

Pupisoma puella Hylton Scott, 1960 was based on a single specimen which differs from P. dioscoricola insigne supposedly in the more regular spacing of the riblets. Hylton Scott (1960) separated P. puella from P. dioscoricola insigne mainly because of the great distance between the type locality of the latter in Texas and the occurrence of the former in Argentina. However, specimens with distinct riblets occur also in the intervening regions, e.g. also in Guyana and Ecuador. There is no reason to consider P. puella to be specifically distinct.

The anatomy of P. dioscoricola has been described by Tillier (1980).

The specimens recorded as P. dioscoricola from Dog Island by Haas (1960) do not belong to Pupisoma .

Pilsbry (1920) has already questioned whether P. orcula (Benson, 1850) , that is distributed throughout the Old World tropics from Africa to East Asia, Australia and even to some Pacific islands, can be separated from the American P. dioscoricola (see also Solem 1989). A comparison of American specimens with material from Africa also did not reveal any conchological differences. Thus, P. orcula (Benson, 1850) can be considered a synonym of P. dioscoricola unless future genetic studies show that Old World and New World populations form separate units.

Distribution ( Figure 6 )

Pupisoma dioscoricola is a circumtropical species (given that P. orcula is a synonym). Pupisoma dioscoricola originated probably in the Old World, because all other Ptychopatula species are restricted to the Old World tropics. However, given its wide distribution in the Americas, it is unlikely that P. dioscoricola has been introduced into the New World only by humans.

Pupisoma dioscoricola is one of the most widespread snails in tropical and subtropical America occurring from the southern USA through the Caribbean and Central America to the Galapagos Islands and to southern Brazil and northern Argentina. It is most frequent in lowland forest, but has been found up to 2100 m altitude.

Figures

Figure 6. Distribution of Pupisoma (Ptychopatula) dioscoricola (C. B. Adams, 1845) (2°-grid). Empty symbols indicate records that have not been checked.

Figure 7. Distribution of Pupisoma (Pupisoma?) comicolense H. B. Baker, 1928 (2°-grid).