Ptychophallus tumimanus ( Rathbun, 1898 )

Magalhães, Célio, Wehrtmann, Ingo S., Lara, Luis Rólier & Mantelatto, Fernando L., 2015, Taxonomy of the freshwater crabs of Costa Rica, with a revision of the genus Ptychophallus Smalley, 1964 (Crustacea: Decapoda: Pseudothelphusidae), Zootaxa 3905 (3), pp. 301-344 : 322-324

Ptychophallus tumimanus ( Rathbun, 1898)

( Fig. 54 – 60 , 84 )

Pseudothelphusa tumimanus Rathbun, 1898: 517 , 536, fig. 7.— Young 1900: 214.— Rathbun 1904: 242 (in list).— Rathbun 1905: 287.— Rathbun 1906: 501 (in list).— Coifmann 1939: 109 (in list).

Pseudothelphusa (Ptychophallus) tumimanus — Smalley 1964b: 11, figs. 11, 12.

Ptychophallus (Ptychophallus) tumimanus — Pretzmann 1965: 5.— Pretzmann 1971: 21.— Pretzmann 1972: 86, figs. 477–479, 499–501.

Ptychophallus (Ptychophallus) tumimanus ingae Pretzmann, 1978: 1 .— Pretzmann 1980: 652, pl. 2, figs. 6–10.

Ptychophallus (Ptychophallus) tumimanus tumimanus — Pretzmann 1980: 652.

Ptychophallus tumimanus — Rodriguez 1982: 84, figs. 49b, e, i, 52a–c.— Villalobos 1982: 220 (in list).— Campos & Lemaitre 1999: 560 (map).— Rodríguez & Hedström 2000: 423.— Villalobos Hiriart & Álvarez 2008: 297 (in list).— Lara et al. 2013: 689 (table), 691, fig. 4 (map).

Ptychophallus tumimanus tumimanus— Ng et al. 2008: 177 (in list).

Ptychophallus tumimanus ingae — Ng et al. 2008: 177 (in list).— Villalobos Hiriart & Álvarez 2008: 297 (in list).

Material examined. COSTA RICA. Locality not specified: 1 male, FMNH 1813, 8.iv.1912, S.E. Meek leg.; 1 male, UCR-MZ (CVS-163-79); 2 males, UCR-MZ 736, Chucuyo River, 25.ii.1972, V. Juárez leg.; 1 male, 1 female, UCR-MZ 743, San José?, Ramiro Fonseca Creek, Ramiro Fonseca’s farm, 26.vii.1972, V. Juárez leg.—Alajuela Province, Atlantic drainage: 1 juv. male, 7 juv. female, TMNH 4427, Cariblanco River, 2 mi N Cariblanco, San Juan, 28.vi.1962, A.E. & G. Smalley leg.; 1 male, UCR-MZ 2659-01, 9 km (by odometer) from Vara Blanca, trib. of Sarapiqui River, 23.vi.1986, A.E. & G. Smalley leg.; 1 male, UCR-MZ 2661-01, El Angel’s farm, Isla Bonita, between Vara Blanca and San Miguel, small tributary of Sarapiqui River, 24.vi.1986, A.E. & G. Smalley leg.; 2 immat. males, UCR-MZ 2785, pond in small stream 0,5 mile N of El Angel Falls, near Cariblanco, 5.ii.1963, R. Casebeer leg.; 1 male, INPA 1847, La Paz Pequeño River, ca. 5 km N Vara Blanca, 19.vi.1986, A.E. Smalley & Campo leg.; 2 males, 5 females, 3 young, UCR-MZ 3225-01, Nuevo Arenal, Road 142, creek close to Reserva Lake Arenal, 10°33’47.4”S 84°56’15.2”W, 610 m, 3.ii.2013, I.S. Wehrtmann et al. leg.; 1 juv. male, UCR- MZ, road San Ramon to La Fortuna, river after the reservoir, 10º12'00.9"N 84º31'23.3"W, 951m, 1.ii.2013, I.S. Wehrtmann et al. leg.; 1 male, 2 females, 6 young, UCR-MZ, Cataratita River, road San Ramón to Fortuna, after the reservoir, 10º12'0.81'N 84º32'0.68"W, 1.ii.2013, Wehrtmann, I. et al. leg.; 1 male, 1 female, CCDB 4539, same data; 1 male, 2 females, 1 juv., UCR-MZ, Catarata River, road San Ramón to Fortuna, after the reservoir, Costa Rica, 10º12'56.4"N 84º32'45.0"W, 1.ii.2013, F. Mantelatto et al. leg.; 1 male, 1 female, CCDB 4549, same data; 1 juv. male, UCR-MZ, Dos Bocas River, Nuevo Arenal, 10º32'55.7"N 84º53'23.4"W, 593m, 02.ii.2013, I.S. Wehrtmann et al. leg.; 5 males, 5 females, UCR-MZ, creek in Road 142, Nuevo Arenal, river close to Reserva Lake Arenal, 10º33'47.4"N 84º56'15.2"W, 610m, 03.ii.2013, I.S. Wehrtmann et al. leg.; 2 males, 2 females, INPA 2081, same data; 1 male, 1 female, CCDB 4553, same data; 3 males, 2 females, 4 young, UCR-MZ, unnamed river, creek on Road 142, Nuevo Arenal, close to Reserva Lake Arenal, 10º33'17.8"N 84º58'68.5"W, 590m, 03.ii.2013, I.S. Wehrtmann et al. leg.; 2 males, 1 female, INPA 2079, same data; 1 male, 1 female, CCDB 4537, same data.—Heredia Province, Atlantic drainage: 5 males, 4 females, UCR-MZ, Braulio Carillo National Park, Road 232, creek before tunnel direction to San José, 30.i.2013, I.S. Wehrtmann et al. leg.; 5 males, 3 females, INPA 2078, same data; 3 males, 2 females, CCDB 4547, same data.—Heredia Province, Pacific drainage: 1 male, 2 females, UCR-MZ 728, San Luis de Santo Domingo, Pará River, 2.vii.1971, C. Villalobos & R.A. Cruz leg.; 1 immat. male, UCR-MZ 735, Porrós River, San Miguel, 3.xi.1971, R.A. Cruz & C. Villalobos leg.—Limón Province, Atlantic drainage: 2 males, 5 females, NHMW 4006, Finca Guayacán, Siquirres (40 km N Turrialba), 11.iii.1975, I. Poglayen-Neuwall leg.; 1 male, UCR-MZ, Limón municipality, Veragua Rainforest Research and Adventure Park, Ciccaba Creek, 19.i.2013, A. Rodriguez & D. Hernández leg.; 1 male, INPA 2077, Limón municipality, Veragua Rainforest Research and Adventure Park, 18-20.i.2013, A. Rodriguez & D. Hernández leg.; 1 male, CCDB 4548, Limón municipality, Veragua Rainforest Research and Adventure Park, 18-20.i.2013, A. Rodriguez & D. Hernández leg.; 3 immat. males, 1 female, 3 juv. female, 3 juv., UCR-MZ 753, Bribri, 11.xii.1976, R.A. Cruz, J. Sanchez & C. Villalobos leg.; 1 immat. male, 24 juv., UCR-MZ 756, Bribri, 12.xii.1976, C. Villalobos, R.A. Cruz & J. Sánchez leg.—Cartago Province: 2 males, NHMW 4005, Bergbach in Parque Arqueológico Guayaba, near Santa Cruz, Reventazón River, 1.000 m, 9.iii.1975, I. Poglayen-Neuwall leg.; 1 male, 1 juv., NHMW 4007, riverine creek 1 km S Chitaria, 685 m, 12.iii.1975, I. Poglayen-Neuwall leg.; 1 male, NHMW 4008, 1 km E Juan Viñas, Turrialba, 13.ii.1975, I. Poglayen-Neuwall leg.; 3 males, NHMW 4004, riverine creek 4 mi N. Turrialba, 600 m, 1975, I. Poglayen-Neuwall leg.; 3 males, UCR-MZ 729, Chiz River, 2.5 km S Juan Viñas, 22.iv.1976, W. Gonzalez & W. Bussing leg.; male, holotype, USNM 19484, Cachí, Reventazón River, undated, G.F. Tristan leg.; 4 males, 1 female, 6 immat. female, NHMW 21841, Orosi, 1300 m alt., iii–iv.1912, leg. unknown; 1 male, INPA 1538, same data.—San José Province, Atlantic drainage: 1 male, 2 immat. females, UCR-MZ 177, Vásquez de Coronado Canton, Bajo La Hondura, 15.i.1968, C.E. Valerio leg.; 4 males, 4 females, UCR-MZ 685, Bajo La Hondura, 29.iv.72, R.A. Cruz & C. Villalobos leg.—San José Province, Pacific drainage: 1 male, 2 females, USNM 19485, La Palma, undated, G. F. Tristan leg.; 1 male, USNM 20042, Pacaca, Rodeo, 185 m, undated, leg. unknown; 2 males, UCR-MZ 138, Pérez Zeledón Canton, El Jardín Creek, 4 km S of División, 7.iv.1972, V. Juárez leg.; 2 males, UCR-MZ 740, Bosín River, 1.5 km N of San Gerardo de Canaan, 11.iv.1972, V. Juárez leg.; 3 males, UCR-MZ 744, San Isidro del General, Bonilla Fallas Creek, José Bonillas’ farm, 25.vii.1972, V. Juárez leg.; 1 male, 4 females, 1 juv., UCR-MZ 671, creek entering Cole Meza’s farm, 16.2 km from San Isidro del General, at CIAS, 28.ii.1971, V. Juárez, C. Villalobos & R.A. Cruz leg. Guanacaste Province: 1 male, 1 female, UCR-MZ, river below bridge on road to Tilarán, Road 142, 10º28'37.3"N 84º57'45.0"W, 566m, 03.ii.2013, I.S. Wehrtmann et al. — Puntarenas Province: male (cw 34.6, cl 20.7), holotype of Ptychophallus (Ptychophallus) tumimanus ingae Pretzmann, 1980 , NHMW 4009, Monteverde, Guacimal River, 1350 m, 24.i.1975, I. Poglayen- Neuwall leg.; 2 males, (cw 29.0, cl 17.3; cw 30.6, cl 18.7), 1 female (cw 26.7, cl 16.9), paratypes of Ptychophallus (Ptychophallus) tumimanus ingae Pretzmann, 1978 , NHMW 4010, Monteverde, Guacimal River, 23–26.i.1975, I. Poglayen-Neuwall leg.; 1 male (cw 34.7, cl 20.7) [? paratype of Ptychophallus (Ptychophallus) tumimanus ingae Pretzmann, 1978 ], TMNH, Guacimal River, 1975, I. Poglayen-Neuwall leg. & don.; 1 male, UCR-MZ 2543-01, Puntarenas Canton, San Luis River, undated, leg. unknown; 1 male, INPA 1832, Buenos Aires Canton, Santa María, 09°16.918’N 83°22.242’W, 11.xi.2009, L.R. Lara leg.; 4 males, INPA 1835, Ceibo River, 09°08.115’N 83°22.856’W, 4.xi.2009, 09°03’26.00’N 83°28’47.02"W, 9.v.2007, L.R. Lara leg.; 1 male, UCR-MZ 2649-01, creek Veraguas, trib. General River, Térraba, L.R. Lara leg.; 1 right G1, INPA 1658, Veraguas creek, trib. General, River Térraba, 09°03’26.00’N 83°28’47.02"W, 9.v.2007, L.R. Lara leg.; 1 male, INPA 1848, Península de Osa, Campanario, road to Drake, 2005, P. Zamora leg.; 1 male, UCR-MZ 750, Osa Canton, Rincón, 18.viii.1968, C. Valerio leg.

PANAMA. Coclé Province: 1 male, USNM 230099, El Valle, undated, P. Allen leg.—Chiriquí Province, Pacific drainage: 1 male, NHMW 21846, Bugabita, 200 m, 1912, Steindachner leg.

Locality not specified: 1 male, 1 female, USNM 20036.

Description of gonopod. Straight in mesiocaudal view. Marginal suture on mesial side, straight; marginal process rounded to subtriangular, not produced beyond distal border of apex. Mesial process subtriangular, slightly downturned. Lateral process moderately long, approximatelly 70–75% of stem length (from proximal opening to caudal border of apex), strongly bilobed, with distinct median concavity on caudal surface; lateral border with distinct median incision; proximal lobe usually rounded, wider than distal lobe, with few scattered minute setae on caudal, lateral surfaces; distal lobe broad, usually tranversal, moderately swollen distally on cephalic surface, as wide as or usually wider than lateral end of apex. Distocaudal ridge distinct, narrow, well separated from the distal border of the lateral process by distinct depression. Apex bent approximately 90° towards laterocephalic side; oblong, narrow in distal view; caudal border with narrow notch near lateral end. Field of apical spines well developed, facing towards cephalolateral side.

Holotype and type locality. Male, cw 70.4, cl 42.7, USNM 19484. Costa Rica, Cartago Province, Cachí, Reventazón River (Atlantic drainage). Both gonopods of the holotype have been dissected.

Distribution. Central and southeastern Costa Rica, on both Atlantic and Pacific drainages, and western Panama, Pacific drainage ( Fig. 84 ).

Remarks. The resemblances and possible synonymy of this species with P. montanus are discussed above. The G1 of Ptychophallus (Ptychophallus) tumimanus ingae Pretzmann, 1978 , ( Fig. 56 ) has the lateral process narrower than that of the holotype of the nominal species ( Fig. 55 ), otherwise they are very similar. Such difference may be due to the size dissimilarity between the holotype specimens of both taxa. We observed that the width of the lateral process varies with size, being narrower than the lateral end of apex in smaller specimens (e.g. INPA 1835, cw 25.4 cl 15.9; Fig. 60 ), slightly or clearly wider in larger ones (e.g. INPA 1835, cw 32.9 cl 20.1; Fig. 59 ). The shape of the lateral lobes can also be variable (the proximal lobe is usually rounded but sometimes can be subquadrate, e.g. USNM 230099, Fig. 58 ) as well as the cleft between them. The cleft is usually deep, but shallow in a few specimens (e.g. INPA 1832; Fig. 57 ).

The senior author found in the TMNH collection an uncatalogued lot with a single male bearing an old label stating “ Pseudothelphusa (Tehuana) lamellifrons poglayenorum n. sp. PARATYPUS, Guacimal River, Costa Rica, Poglayen 1975 leg. et don.”, and a newer one saying “ Pseudothelphusa (Tehuana) lamellifrons poglayenorum n. sp. Paratypis 1 male, Guacimal River, Guatemala [sic] leg & don: Poglayen, 1975 (new label by Fitspa’k, 1994)”. Pretzmann (1978, 1980) listed four males and one female (NHMW 4010) as the paratype specimens of P. (P.) tumimanus ingae , but only two males were found in this lot by one of us (CM) at NHMW. The paratypes of Pseudothelphusa (Tehuana) lamellifrons poglayenorum Pretzmann, 1978 (see Pretzmann 1978, 1980) consist of two females. It is possible that one male paratype of P. (P.) tumimanus ingae was donated to TMNH and that it represents the uncatalogued specimen, in spite of the doubtful label.

Figures

FIGURE 84. Distribution map of Ptychophallus tumimanus (Rathbun, 1898), and P. uncinatus Campos & Lemaitre, 1999.

FIGURES 44 – 60. Ptychophallus paraxanthusi (Bott, 1968): 44, left first gonopod, holotype, MNHN B- 5328, caudo-mesial view; 45, same data, latero-cephalic view of distal part; 46, right first gonopod, holotype of Ptychophallus osaensis Rodríguez, 2001, TMNH 6271, caudo-mesial view; 47 – 48, outline of right first gonopod, two males from INPA 1853, caudo-mesial view; 49, same data, INPA 1657; 50, same data, INPA 1855; 51 – 52, outline of left first gonopod, two males from INPA 1854, caudomesial view; 53, same data, INPA 1855. Ptychophallus tumimanus (Rathbun, 1898): 54, left first gonopod, holotype, USNM 19484, latero-cephalic view of distal part; 55, same data, caudo-mesial view; 56, same data, holotype of Ptychophallus (Ptychophallus) tumimanus ingae Pretzmann, 1978, NHMW 4009, caudo-mesial view; 57, outline of left first gonopod, INPA 1832, caudo-mesial view; 58, same data, USNM 230099; 59 – 60, same data, two males from INPA 1835. Scale bars = 1 mm.