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PACIFIC SCIENCE, VoL XIV, July I960 
(2) a pterygostomial angle which is less pro- 
nounced; (3) shorter scaphocerites and ventral 
lateral teeth of the basicerites; (4) more hirsute 
third maxillipeds; (5) four, rather than three, 
articles in the second legs; (6) a telson which 
has a different armature. In the mouth parts, the 
differences in form of the mandibles, the max- 
illulae, and the second maxillipeds are striking, 
as can be seen by comparing the figures. 
Whether the differences in length of the styl- 
ocerites, in the form of the third legs, and in 
the armature of the telson and uropods are sig- 
nificant cannot be determined without more 
specimens. 
The species has been, left unnamed because 
the specimens are so incomplete. 
REFERENCES 
Chace, Fenner A. 1937. The Templeton 
Crocker Expedition, VII. Caridean Decapod 
Crustacea from the Gulf of California and 
the West Coast of Lower California. Zo- 
ologica, N. Y. 22 (2 ) : 109-138, text figs. 1-9. 
Coutiere, Henri. 1899. Les "Alpheidae,” Mor- 
phologic, externe et interne, formes larvaires, 
bionomie. Theses presentees a la Faculte des 
Sciences de Paris. . . . Ser. A, No. 321 (No. 
d’ordre 980). Masson et Cie., Paris. 599 pp., 
409 text figs., 6 pis. (Also in: Ann. Sci. Nat. 
VIII, Zool. 9: 1-560.) 
1908. Sur quelques nouvelles especes 
d’Alpheidae. Soc. Philom. Paris Bull. IX, 
11(5): 1-26. 
