328 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



CYCLOGRAPSUS PUNCTATUS Milne Edwards. 



Plate 90. 



Cyclograpsua punctatm MILNE EDWARDS, Hist. Nat. Crust., vol. 2, 1837, 

 p. 78 (type-locality, Indian Ocean; type in Paris Mus.). 



Gnathochasmus barbatus MACLEAY, Illus. Zool. S. Africa, 1S38, p. 05, pi. 3 

 ( type-local ity, South Africa; type probably not extant). 



Scsunna barbata KRAUSS, Sudafr. Crust., 1843, p. 45, pi. 3, fig. 3o-c. 



Cycloyrapsus minutus JACQUINOT, in Hombron and Jacquiuot, Voy. au Pole 

 Sml, Zool., atlas, Crust., 1852, pi. G, figs. 8 and H ; vol. 3, Crust., 1853, 

 p. 75 (type-locality, Talcahueno; type in Paris Mus.). 



Diagnosis. Edge of front plainly visible in dorsal view. A deep 

 postorbital sulcus. Tooth on merus joints of legs. Dactyli of legs 

 very stout. 



Description. Carapace larger and more uneven than in the two 

 preceding species ; length about four-fifths of width ; on the anterior 

 half, four large pits on each side; front and 

 antero-lateral regions with uneven punctae. Front 

 less deflexed than in C. integer or cinereus, its 

 margin visible in dorsal view; width more than 

 two-fifths width of carapace. Outer orbital angle 

 blunt ; lower margin very incomplete. A deep gut- 

 ter leads backward from it under the antero-lateral 

 PIO. 153. CYCLO- margin. 

 CHAPSUS VUXCTA- Ischium of outer maxilliped narrower behind 



TUS, OUTEU MAX- ., . ^ . , 



i L L i r E D , EX- than in C. integer. 



LAKCED. (ArTEu Clielipeds very strong. Wrist and hand nearly 



MILNE EIHVAUDS.) , * . . , . ,. . ., -j 



smooth. A prominent longitudinal ridge inside 

 palm. Prehensile teeth feeble, upper edge of pollex slightly convex. 



Second leg one and three-fourths times as long as carapace. Merus 

 joints with a feeble subterminal tooth; dactyli and only the distal 

 end of the anterior edge of the propodi short-pilose; no great pu- 

 bescence between bases of second and third legs; dactyli very stout, 

 and last pair very short. 



Abdomen of male tapering gradually from the third to the sixth 

 segment, this part of the margin being concave. 



Color. Purplish-brown with black punctae (Stimpson). Green- 

 ish-yellow, carapace with dark-red spots or dots, claws unicolored or 

 with dark red dots (Krauss). 



Measurements. Male (3240), length of carapace 23.5, width of 

 same 28.5, fronto-orbital width 20.7 mm. 



Habitat. Under stones (Krauss). In holes in mud in brackish 

 water at mouth of river (Krauss). 



Range. Chile: Valparaiso Bay (Valparaiso Mus.) ; Juan Fernan- 

 dez (Lenz) ; Talcahuano (Jacquinot). Also South Africa. Indian 



