546 



BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



Eriphia gonagra Milne Edwards, Hist. Nat. Crust., vol. 1, 1834, p. 426, pi. 16, 



figs. 16 and 17. — Hay and Shore, Bull. Bur. Fisheries, vol. 35, 1915-16 



(1918), p. 439, pi. 35, fig. 6. 

 Eriphia armala Dana, U. S. Expl. Exped., vol. 13, Crust., part 1, 1852, p. 248, 



atlas, 1855, pi. 14, fig. 6 a-d (type-locality, Rio Negro, Patagonia; type 



not extant). 

 Eriphia laevimana var. smithii Cano, Boll. Soc. Nat. Napoli, ser. 1, vol. 3, 1889, 



p. 210 (part), not MacLeay, 1838. 



Diagnosis. — Male abdominal, appendages of first pair with ex- 

 tremity gradually tapering and sharp pointed. Carapace roughened 

 antero-laterally with tubercles each formed of a row 

 of two or more granules. Frontal lobes (between 

 antennae) divided each into a broad, transverse, 

 inner lobe and a very small outer lobule. Tuber- 

 cles of proximal row on wrist not dissimilar to 

 remaining tubercles. 



Description.— C&rap&ce of moderate width, regions 

 clearly marked on anterior two-thirds; postorbital 

 grooves very d^ep; a transverse broken granulated 

 line in front of epigastric lobes, another similar line 

 across protogastric and hepatic lobes; a line of tu- 

 bercles parallel to antero-lateral margins; these last 

 armed with five or six spiniform teeth behind the 

 orbital tooth. Front wide, deflexed, and divided 

 into four lobes; the two median wider and more advanced than the 

 lateral, truncate, with a finely granulated border; lateral lobes very 

 small, close to the median pair. The so-called outer frontal lobe 

 which lies alongside the inner suborbital tooth, pertains to the upper 

 orbital border. Inner orbital suture very sinuous; below it a line of 

 large tubercles. 



Chelipeds strong, swollen, unequal. Hand covered with large, 

 round, flattened, squamiforrn tubercles, more elevated on the small 

 hand than on the large; the major dactylus has a large rounded tooth 

 at its base. Wrist covered with less prominent tubercles. Legs 

 clothed with fine, stift' hairs on the last three articles. 



Color of Tortugas specimens (Schmitt).- — Carapace brownish green, 

 marked along areolations and on anterior rugae with a warmer 

 bluish brown; anterior spines, edge of orbits and of front touched 

 with yellow. Under parts whitish suffused with pink, becoming 

 yellowish posteriorly and on abdomen, and bluish anteriorlj'^ and 

 laterally; maxillipeds purplish. Antennules claret color as is ridge 

 of epistome between efferent branchial openings. Fingers and 

 tubercles (upper four or five rows) of manus and carpus deep purplish 

 brown, becoming grape juice color on anterior inner portion and 

 lower edge of palm. Ground color of manus, carpus and merus light 

 bluish purple, more or less suffused with yellow on inner portion. 



Figure 83.— Eriphia 

 gonagra, male (59423), 

 first pair of abdomi- 

 nal appendages, x 3 



\ 



