Telphusa longipes, (A. Milne-Edwards, 1869)

Brandis, Dirk, 2002, On the taxonomic status and biogeography of the Isolapotamidae Bott, 1970 (Decapoda, Brachyura), Journal of Natural History 36 (11), pp. 1291-1339 : 1326

Dromotelphusa longipes (A. Milne-Edwards, 1869)

(gure 18a–c)

Telphusa longipes A. Milne-Edwards, 1869: 183 , pl. 9, gure 5.

Potamon (Potamonautes) longipes: Ortmann, 1897: 304 , 306; De Man, 1904: 15.

Potamon longipes: De Man, 1898: 403 , 437.

Potamon (Potamon) longipes: Rathbun, 1904: 284 , pl. 9, gure 5.

Ranguna (Ranguna) longipes: Bott, 1970b: 168 , pl. 43, gure 7, pl. 51, gure 55.

Ranguna longipes: Bott and Türkay, 1977: 93 , gures 1, 2.

Dromotelphusa longipes: Naiyanetr, 1992a: 114 ; Ng and Naiyanetr, 1993: 21.

LECTOTYPE. 1 ( MNHN BP 220 ) Ile Poulo-Condore (Bord de la mer) (5 Con Son), Vietnam: 8ss41¾ 00 ² N 106ss37¾ 00 ² E, 1974, leg. E. Forest.

Material. One, one ( USNM 29993 ) Ile Poulo-Condore (5 Con Son), Vietnam : 8ss41¾ 00 ² N 106ss37¾ 00 ² E, leg. M. Harmand; one ( NMB 908 a) Poulo Condore, November 1933, don. Mus. Singapore .

Diagnosis. Carapace smooth, slightly grooved, lateral regions granulated, anterolateral margin well developed, serrated with equal teeth, postorbital margins and postfrontal lobes fused to sharp margin, which leads nearly to lateral edge, chelipeds unequal, ngers of both chelae slightly gaping, palms rugose, walking legs distinctly elongated; pleon stoutly triangular, terminal joint of rst gonopod long, slender cylindrical, slightly curved outwards, overlapping zone reaching only ventral part, in middle with a small mesial bulging at overlapping margin.

Type locality. Ile Poulo-Condore (5 Con Son), Vietnam.

Distribution. Presently known only from the type locality.

Remarks. This species is the type of Dromotelphusa Nayianetr, 1992. The second gonopod morphology of D. longipes is unique and it is another exclusive character for this genus.