CALIFORNIA STALK-EYED CRUSTACEA. 105 



suborbicular, thick and convex in the middle, but with the sides laminate. 

 Length of carapace, 46.5 mm.; breadth of carapace, 35 mm. 

 Length of carapace, 47 mm.; breadth of carapace, 36 mm. 



San Diego (Randall)! Monterey (Miers); Santa 

 Monica, Calif.! Estero Bay! San Quentin Bay, Lower 

 California! 



Genus Lepidopa Stimpson. 



Eye-peduncles lamellate, compressed, almost squamiform; corneas rudi- 

 mentary. Antennules long. Antennae with a very small accessory joint; 

 flagellum very short. Maxillipeds with the fourth joint produced at the 

 antero-exterual angle into a lobe which reaches to or beyond the distal 

 extremity of the fifth (penultimate) joint. 



Type. L. scutellata (FABR.) 



Lepidopa my ops St. 



Lepidops myops STIMPSON, Ann. N. Y. Lye. Nat. Hist., Vol. VII, 1860, p. 



241. MIERS, Journ. Linn. Soc. (Zool.) London, Vol. XIV, 1879, p. 333, 



PI. XIV, fig. 16. 

 Lepidopa myops ORTMANN, Zool. Jahrb. Abth. f. Syst., Bd. IX, 1896, p. 226. 



Carapace oblong, with an obtuse median ridge, and marked with trans- 

 verse grooves. Front trilobed, the median lobe rounded and shorter than 

 the lateral lobes, which are acute. A spine at the antero-lateral angles. 

 Posterior margin of the carapace deeply concave in the center. Ocular 

 peduncles oblong, broadly rounded in front, the cornea when present 

 minute and located on the margin near the antero-lateral angle. Auten- 

 nules ciliated and over twice the length of the carapace. Antennae shorter 

 than the carapace; a thin lamina on the inner side of the basal joint; 

 acicle minute; flaelglum scarcely as long as the peduncle. Chelipeds stout; 

 hand high, and strongly compressed; pollex very short and curved; finger 

 rather slender, curved, and, when closed, lying nearly at right angles to 

 the long axis of the hand. The dactyls are compressed, falcate, dissimilar. 

 The second, third, and fourth abdominal segments are furnished with 

 wide, wing-like expansions which diminish in length and breadth pos- 

 teriorly. Telson about as wide as long and rounded at the sides and apex. 



Length of carapace, 15 mm.; breadth, 17 mm. 



Cape St. Lucas (Stimpson); Lower California! San 

 Diego (five specimens)! 



The small teeth on the median frontal lobe mentioned 

 by Stimpson are present on only a part of the speci- 

 mens I have seen. 



