174 SMITHSONIAN MISCELLANEOUS COLLECTIONS 



long; penult joint narrower; third and fourth joints each with four 

 spines, the spines short, those of the fourth joint most prominent; a 

 short spine on each side at the posterior angles of the fifth joint. 

 Color lemon-yellow or orange, sometimes blotched with brown on 

 the dorsal aspect. Fingers of chelipeds carmine. Length of cara- 

 pax in the male, 0.525 ; breadth. 0.56 inch. 



The back was covered by a close-grained sponge. 



It was found among madrepores at the depth of a fathom, in Port 

 Lloyd, Bonin Island. 



279. CRYPTODROMIA LATERALIS (Gray) Stimpson 



Plate XX, Fig. 3 

 Droinia lateralis Gray, Zoological Aliscellany, p. 40. 



Our specimens agree with the description above cited, except in 

 dimensions, which are, according to Gray : "Length, 7 ; breadth, 61/2 

 lines." In ours the carapax is broader than long. But Gray may 

 have measured the body as protruding beyond the carapax behind. 



The front is large, very strongly projecting, and bicuspid. Color 

 luiiform, light yellowish-brown. 



Found at low-water mark on rock}' and stony ground and among 

 sponges, in six fathoms, muddy bottom, Port Jackson, Australia. 



280. CRYPTODROMIA TUBERCULATA Stimpson 

 Pt.ATE XXI, Fig. 6 



Cryptodromia tuberculata Stimpson. Proc. Acad. Nat. Sci. Phila., x, 

 p. 239 [77]^ 1858. 



Carapax broad, smooth, scarcely at all pubescent. Front broad, 

 little prominent, 5-toothed, including the prseorbital teeth ; teeth sub- 

 equal, obtuse ; median tooth most acute and prominent. Lateral 

 margins 4-toothed ; the first two teeth strong and tuberculiform ; 

 the third low and elongated, but deeply separated from the second 

 and fourth ; the fourth situated at the lateral sulcus. First tooth 

 separated by a considerable interval from the orbital angle. On the 

 subhepatic region there is an arched row of tubercles or teeth ex- 

 tending from the extero-inferior corner of the orbit to the second 

 lateral tooth ; these tubercles diminish in size outward ; the two near- 

 est the e}'e are very strongly prominent and are nearly as large as 

 the lateral teeth. There are also two teeth in a transverse row 

 next to the anterior angle of the buccal area. Chelipeds strongly 



