Ptychophallus micracanthus Rodríguez, 1994

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 : 314

Ptychophallus micracanthus Rodríguez, 1994

( Figs. 33, 34 , 78 )

Ptychophallus micracanthus Rodríguez, 1994: 305 , fig. 4A–D.— Campos & Lemaitre 1999: 560 (map).— Rodríguez & Hedström 2000: 423.— Rodríguez & Magalhães 2005: 356 (table I).— Ng et al. 2008: 176 (in list).— Villalobos Hiriart & Álvarez 2008: 297 (in list).

Material examined. PANAMA. Kuna Yala Comarca, Atlantic drainage: 2 males, 2 females, 4 juv., USNM 240105, tributary of Carti Grande River, at trail NW from Nuragandi [Nusagandi Natural Reserve?], 5.iii.1985, R.W. Bouchard leg.; 3 males, USNM 240110, Pingandi Creek at Llano-Carti road, 4.iii.1985, R.W. Bouchard leg.; 1 male, USNM 240111, Nuragandi [Nusagandi?] off Llando-Carti Rd, 1.iii.1985, R.W. Bouchard leg.— Panama Province, Pacific drainage: male, holotype, USNM 240106, 16 km from Cerro Azul, approximately 330 m, 29.i.1971, L.G. Abele & R. Dressler leg.; 1 female paratype, 36 juv., USNM 240107, same data; 2 males, 4 females, 22 juv., USNM 240108, same data; 2 males, 1 female, 3 juv., USNM 240109, tributary of Pacora River, creek by road, about 8 mi N of Cerro Azul, 27.viii.1962, H. Lofkin & Kosan leg.; 1 male, INPA 1525, same data.—Chiriquí Province, Pacific drainage: 1 male, USNM 1089237, Cerro Punta, 1–3.iii.1963, E.J. Morris leg.

Description of gonopod. Straight in mesiocaudal view, apex bent approximately 90° in laterocephalic direction. Marginal suture on mesial side, straight; marginal process subretangular, not produced beyond distal border of apex. Mesial process small, subtriangular, slightly downturned, with one short spine on laterocephalic side. Lateral process lengthy, strongly bilobed, approximately 80% of stem length (from proximal opening to caudal border of apex), with deep notch in middle; lateral border with deep median incision, proximal lobe narrower, wider than the distal one, surpassing in width the lateral end of apex; distal lobe as wide as lateral end of apex. Distocaudal ridge short, narrow, weakly separated from distal border of lateral process by shallow depression. Apex oblong, narrow, with narrow notch on lateral end. Field of apical spines well developed, facing towards cephalolateral side.

Holotype and type locality. Male, cw 42.4, cl 25.5, USNM 240106. Panama Province, Panama, near Cerro Azul (Pacific drainage).

Distribution. Western and central Panama, in both Pacific and Atlantic drainages ( Fig. 78 ).

Remarks. See remarks for Ptychophallus costaricensis .

Figures

FIGURE 78. Distribution map of Ptychophallus cocleensis Pretzmann, 1965, P. lavallensis Pretzmann, 1978, and P. micracanthus Rodríguez, 1994.

FIGURES 33 – 43. Ptychophallus micracanthus Rodríguez, 1994: 33, left first gonopod, holotype, USNM 240106, caudomesial view; 34, same data, latero-cephalic view of distal part. Ptychophallus montanus (Rathbun, 1898): 35, left first gonopod, lectotype, USNM 19486, caudo-mesial view; 36, same data, latero-cephalic view; 37, outline of left first gonopod, INPA 1843, caudo-mesial view; 38, same data, INPA 1847, caudo-mesial view. Ptychophallus tristani (Rathbun, 1896): 39, left first gonopod (partially damaged on proximal part), holotype, USNM 19047, caudo-mesial view; 40, same data, latero-cephalic view of distal part; 41, left first gonopod, holotype of Ptychophallus (Ptychophallus) campylus Pretzmann, 1968, NHMW 21849, caudo-mesial view; 42, outline of right gonopod, INPA 1836, caudo-mesial view; 43, outline of left first gonopod, INPA 1851, caudo-mesial view. Scale bars = 1 mm.