Ptychophallus uncinatus Campos & Lemaitre 1999
Creators: name: Magalhães, Célio
name: Wehrtmann, Ingo S.
name: Lara, Luis Rólier
name: Mantelatto, Fernando L.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Pseudothelphusidae
Ptychophallus
Ptychophallus uncinatus

description: Ptychophallus uncinatus Campos & Lemaitre, 1999
(Figs. 61– 63, 84)
Ptychophallus uncinatus Campos & Lemaitre, 1999: 554, figs. 1, 2, 5.— Rodríguez & Magalhães 2005: 356, table I.— Ng et al. 2008: 177 (in list).— Villalobos Hiriart & Álvarez 2008: 297 (in list).— Lara et al. 2013: 689 (table), 691, fig. 4 (map).
Ptychophallus barbillaensis Rodríguez & Hedström, 2000: 421, figs. 1, 2C, H.— Suárez 2005: 156.— Rodríguez & Magalhães 2005: 356, table I.— Ng et al. 2008: 176 (in list).— Villalobos Hiriart & Álvarez 2008: 296 (in list).
Material examined. COSTA RICA. Locality not specified: 4 males, 6 females, UCR-MZ (field number CVS-005- 86), no date, leg. unknown; 5 males, 1 female, INPA 1841, same data.—Limón Province, Atlantic drainage: 2 ovig. female, paratypes of Ptychophallus barbillaensis Rodríguez & Hedström, 2000, UCR-MZ 2349-01 (ex-IVIC 1075), Nairi Field Station (El Alberque), 3 km N of the border of Barbilla National Park, 09°59’N 83°27’W, 7.i.1999, I. Hedström leg.; 1 male, 1 immat. male, 1 juv. male, paratypes of Ptychophallus barbillaensis Rodríguez & Hedström, 2000, UCR-MZ 2350-01 (ex-IVIC 1078), El Recodo, Dantas River, Barbilla National Park, 300 m, 6.i.1999, I. Hedström leg.; 1 male (cw 27.7, cl 16.9), holotype of Ptychophallus barbillaensis Rodríguez & Hedström, 2000, UCR-MZ 2351-01 (ex-IVIC 1073), Caño Seco River, from Barbilla River, Barbilla National Park, 300 m, 10°00’N 83°26’W, 7.i.1999, I. Hedström leg.; 2 males, paratypes of Ptychophallus barbillaensis Rodríguez & Hedström, 2000, UCR-MZ 2353-02 (ex-IVIC 1076), Casas Negras, Dantas River, Barbilla National Park, 200 m, 8.i.1999, I. Hedström leg.; 2 males, 1 immat. female, paratypes of Ptychophallus barbillaensis Rodríguez & Hedström, 2000, UCR-MZ 2352-01 (ex-IVIC 1077), Las Cuevas, Dantas River, Barbilla National Park, Talamanca, 150 m, 11.i.1999, I. Hedström leg.; 4 males, 3 females, INPA 1978, Limón municipality, Veragua Rainforest Research and Adventure Park, 09°55’20.45”N 83°11’15.14”W, 9.ii.2012, I.S. Wehrtmann, C. Magalhães, F. Mantelatto, F. Carvalho & R.T. Bauer leg.; 2 males, 1 female, CCDB 4105, same data; 6 males, 8 females, 6 young, UCR-MZ, same data; 3 males, 1 female, INPA 1979, Limón municipality, Veragua Rainforest Research and Adventure Park, 09°55’16.3”N 83°11’12.1”W, 9.ii.2012, I.S. Wehrtmann, C. Magalhães, F. Mantelatto, F. Carvalho & R.T. Bauer leg.; 3 males, 1 female, 1 female with young, UCR-MZ, same data; 4 males, 1 female, INPA 1980, Limón municipality, Veragua Rainforest Research and Adventure Park, 09°55’54.4”N 83°11’42.7”W, 9.ii.2012, I.S. Wehrtmann, C. Magalhães, F. Mantelatto, F. Carvalho & R.T. Bauer leg.; 1 male, 1 female, CCDB 4104, same data; 3 males, 1 female with young, 1 female juv., UCR-MZ, same data; 3 males, 2 females, INPA 1981, Limón municipality, Veragua Rainforest Research and Adventure Park, 09°55’34.75”N 83°11’26.75”W, 10.ii.2012, C. Magalhães, F. Mantelatto, F. Carvalho & R.T. Bauer leg.; 1 male, 1 female, CCDB 4106, same data; 4 males, 2 females, 1 young, UCR-MZ, same data; 1 male, UCR-MZ 3224-01, Limón municipality, Veragua Rainforest Research and Adventure Park, 5.vii.2012, J. Salazar leg.; 1 male, INPA 2017, same data, 12.vii.2012, J. Salazar leg.; 6 males, 2 females, UCR-MZ, Limón municipality, Veragua Rainforest Research and Adventure Park, Ciccaba creek, 19.i.2013, A. Rodriguez & D. Hernández leg.; 1 male, INPA 2087, same data; 3 males, 2 females, 2 juv., UCR-MZ, Limón municipality, Veragua Rainforest Research and Adventure Park, Los Lamentos Creek, 19.i.2013, A. Rodriguez & D. Hernández leg.; 13 males, 5 females, 3 juv., UCR-MZ, Limón municipality, Veragua Rainforest Research and Adventure Park, Huevos Creek, 18.i.2013, A. Rodriguez & D. Hernández leg.; 7 males, 3 females, INPA 2088, same data; 4 males, 1 female, CCDB 4545, same data; 2 males, 1 juv. female, UCR-MZ, Limón municipality, Veragua Rainforest Research and Adventure Park, sitio #1, 18.i.2013, A. Rodriguez & D. Hernández leg.; 8 males, 4 females, 8 juv., UCR-MZ, Limón municipality, Veragua Rainforest Research and Adventure Park, sitio #2, 18.i.2013, A. Rodriguez & D. Hernández leg.; 4 immat. males, 1 female, 2 immat. female, 1 young, UCR-MZ 153, Bribri, 12.ii.1976, R.A. Cruz, J. Sánchez & C. Villalobos leg.; 4 immat. males, several juveniles, UCR-MZ 156, Bribri, 12.xii.1976, C. Villalobos, R. Cruz & C. Villalobos; 1 immat. male, UREG, Bribri, Carbón River, trib. Sixaola River (border Costa Rica-Panama), 09°38.788’N 82°52.216’W, xii.2010, T. Poettinger leg.— Puntarenas Province, Pacific drainage: 1 male, INPA 1842, Batambal creek (Desfogue), trib. Camaronal River, bacia do Grande de Térraba River, 15.xi.2007, L.R. Lara leg.; 1 male, 1 female, UCR-MZ 2655-01, Batambal creek, Camaronal River (Desfogue), Palmar Norte, 10.v.2007, L.R. Lara leg.; 3 males, UCR-MZ 2655-02, Batambal creek, Camaronal River (Desfogue), Palmar Norte, 10.v.2007, L.R. Lara leg.; 1 left G1, INPA 1656, Camaronal River, 08°57’52,05"N 83°28’14,14"W, 30.v.2007, L.R. Lara leg.; 1 male, 1 female, UCR-MZ 2654-01, Asentamiento creek, Caña Blanca (Desfogue), Palmar Norte, 8.ix.2006, L.R. Lara leg. PANAMA. Bocas del Toro Province, Atlantic drainage: male, holotype, USNM 276164, San Pedro River, i.1978, B.L. Gordon leg.
Description of gonopod. Straight in mesiocaudal view. Marginal suture on mesial side, straight; marginal process rounded to subtriangular, strongly bent towards cephalic side, not produced beyond the distal border of apex. Mesial process subtriangular, slightly downturned. Lateral process moderately long, approximatelly 60–65% of stem length (from proximal opening to caudal border of apex), distinctly bilobed, with distinct median concavity on caudal surface; lateral border with distinct median incision; proximal lobe broadly rounded, as wide as or slightly wider than distal lobe, with few scattered, minute setae on caudal, lateral surfaces; distal lobe broad, wider than lateral end of apex, strongly swollen distally on cephalic surface, with crest-like flange directed distally, forming cup-shaped receptacle. Distocaudal ridge distinct, narrow, well separated from the distal border of lateral process by distinct depression. Apex bent approximately 90° towards laterocephalic side; oblong, wide in distal view; caudal border with narrow notch near lateral end. Field of apical spines well developed, facing cephalolateral side.
Holotype and type locality. Male, cw 26.3, cl 17.0, USNM 276164. Panamá, Bocas del Toro Province, San Pedro River (Atlantic drainage).
Distribution. Eastern and southeastern Costa Rica, in both Atlantic and Pacific drainages, and northwesten Panama, Atlantic drainage (Fig. 84).
Remarks. Other species of Ptychophallus, such as P. colombianus, P. exilipes, P. montanus, and P. tumimanus, also show some degree of expansion of the distal lobe of the lateral process of the gonopod, but in none of these species this condition is so developed as in P. uncinatus. Ptychophallus uncinatus can be distinguished from the other congeners by the distinct flange in the border of the lateral process distal lobe that clearly surpasses the strongly bent apex. Other differences among these species were discussed by Campos & Lemaitre (1999).
Just as in P. uncinatus, the G1 of P. barbillaensis also shows a cup-shaped receptacle and the distal flange in the distal lobe of the lateral process (Fig. 63). The examination of the types of both P. barbillaensis and P. uncinatus revealed that their gonopods are morphologically very similar to each other, and they are hereby synonymyzed. Rodríguez & Hedström (2000) described P. barbillaensis and deposited the type specimens in the IVIC collection, which were posteriorly transferred to UCR-MZ.
description: Published as part of 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), pp. 301-344 in Zootaxa 3905 (3) on pages 324-326, DOI: 10.5281/zenodo.235127