168 CALIFORNIA ACADEMY OF SCIENCES. 



Subtribe LORICATA. 



Body not strongly compressed and often depressed. Rostrum broad, 

 short or absent. Outer antennas devoid of an acicle, the first joint of the 

 peduncle fused with the epistome. All of the pereopods six-jointed, and 

 none of them chelate except the last pair which is sometimes subchelate. 

 in the female. First abdominal segment devoid of appendages in both 

 sexes. Posterior portion of the telsou and uropods flexible. Gills tri- 

 chobrauchiate. 



Genus Panulirus White. 



Carapace spiny. Ocular peduncles small, free. Upper portion of the 

 autenuular segment wide, nearly horizontal, fused with the carapace, the 

 surface furnished with spines, the sides smooth where they are rubbed by 

 the bases of the widely separated antennae. Flagella of the antennules 

 long. Rostrum absent. A pair of spines on the anterior margin of the 

 carapace over the eyes. Epistome devoid of a longitudinal furrow. Fifth 

 pereopods of the female subchelate. 



Pfeffer discards the name Panulirus on account of its 

 similarity to Palinurus, the former name being derived 

 from the latter by simply transposing the position of 

 some of the letters. This does not appear to me a suffi- 

 cient reason for discarding a generic name. 



Panulirus interruptus (Randall). 



Palinurus interruptus RANDALL, Journ. Acad. Nat. Sci. Phila., Vol. VIII, 

 1839, p. 137. GIBBES, Proc. Amer. Ass. Adv. Sci., 1850, p. 194. 



Panulirus interruptus STIMPSON, Proc. Cal. Acad. Sci., Vol. I, 1856, p. 88; 

 Journ. Bost. Soc. Nat. Hist., Vol. VI, 1857, p. 491. RATHBUN, R., 

 The Fisheries of the U. S., Sec. 1, 1884, p. 780, PI. 320. ORTMANN, 

 Zool. Jahrb. Abth. f. Syst., Bd. X, 1897, p. 260. 



Senex interruptus ORTMANN, Zool. Jahrb. Abth. f. Syst., Bd. VI, 1892, 

 p. 23. 



Carapace subcylindrical and covered with short spines. Rostral horns 

 subparallel, compressed, and curved forwards. Upper portion of the 

 antennulary segment with two pairs of spines, the margins raised and 

 polished. The peduncle of the antennules slightly exceeds that of the 

 antennae; first joint about as long as the next two; second joint about 

 three-fourths as long as the third; flagella longer than the peduncle, the 



