no. iTflO. STALK-EYED CRUSTACEA OF PERI A' 1 77//:/ V. 535 



compressed, decreasing in length from first to fourth : propodi dilated, 

 a blunt tooth on under edge against which the dactylus plays. 

 Length 15 to 18 nun. 



Dredged, Bay of Sechura, about half-way between Bayovar and Matacaballa, in 

 5 to (i fathoms, April 10, l!)()7. 

 Taken from seaweed, Chineha, North Inland, June is, 1907. 



Distribution. -From Cape St. Lucas, Lower California, to Chile; 

 Galapagos Islands. Also east coast of tropical America. 



EUPLEURODON TRIFURCATUS Stimpson. 

 Plate 49, fig. 5. 

 Eupleurodon trifurcatus Stimpson, Ann. Lye. Nat. Hist. N. Y., vol. 10, 1871, p. 98. 



Very small. Carapace pentagonal, post-rostral portion broader 

 than long, a strong forward-projecting tooth at antero-lateral angle, 

 and a large tooth farther back on side margin; surface uneven, 

 armed with about fourteen setose tubercles. A strong preorbital toot 1 1 . 

 Rostrum bifid, the teeth lobiform and inclined toward each other. 

 Chelipeds small; two tubercles and a terminal tooth on upper ed^o 

 of arm; wrist nodose; upper edge of palm concave. Propodi and 

 dactyli of legs subequal in length, a strong tooth on proximal half of 

 propodi. 



Length S to 10 mm. 



From n»ks between tide linos, north end of Ferrol Bay (Chimbote), March 1. 



Not previously known from Peru. 



Distribution, — Cape St. Lucas, Lower California; Peru. 



MICROPHRYS PLATYSOMA (Stimpson). 

 Plato 50, fig. 3. 



Milnia platysoma Stimpson, Ann. Lye. Nat. Hist. N. Y., vol. 7, 1860, p. 180. 



Carapace subtriangular, posterior margin arcuate; surface tuber- 

 culate, with occasional long hairs; uneven, margins spinulous; two 

 larger spines, one above the other, at outer angle of branchial region; 

 three marginal laminae, one on orbital tooth, one on hepatic region, 

 and the other on branchial region; between and below the last two 

 a spine; orbit deeply fissured above; preorbital spine present; 

 between it and the rostrum a prominent antenna] spine; rostrum 

 bispinous. Chelipeds strong in male, feeble in female; arm and 

 wrist tubereulate, arm with flat, teeth above; fingers in male widely 

 gaping and dactylus with large basal tooth; fingers in female nearly 

 meeting. Legs cylindrical, rapidly diminishing from first to fourth; 

 subterminal spine on merus of first pair. 



Lensrth \'2 to 18 mm. 



*tn' 



From rocks between tide linos, north end of Ferrol Bay (Chimbote), March I . 



