1921] Schmitt: The Marine Decapod Crustacea of California 107 
abyssal species. On the other hand, the structure of its visual organs and its 
absence from collections made with the surface tow-net preclude the thought of its 
living at or very near the surface. 
Remarks.—There seems to be some variation in the number of spines before 
the cervical groove. The formula above in the ‘‘Characters’’ adapted from Faxon 
gives one more spine just before the cervical groove than appears in the ‘‘ Alba- 
tross’’ California specimen, for which the formula reads: Rostrum + 1, 2, 1; 
cervical groove 2, 2, 1, 2. That this is no more than variation seems borne out 
by an examination of several of the juvenile specimens identified by Faxon and 
deposited in the U. S. National Museum. For three of these the formulas are: 
1. (Length 37 mm.): Rostrum + 1, 2, 1, 1, denticle; cervical groove, 2, 2, 1, 2. 
2. (Length 20 mm.): Rostrum + 1, 2, 1, denticle; cervical groove, 2, 2, 1, 2. 
3. (Length 19 mm.): Rostrum + 1, 2, 1, denticle; cervical groove, 2, 2, 1, 2. 
There are also some slight variations in the number of median abdominal 
spines, as well as slight discrepancy between Faxon’s colored figure (Faxon, 1895, 
pl. B) and his published description, as follows: 
Abdominal somite 1 2 3 4 5 6 Telson 
Faxon’s description .............- 1 2 2 2 2 i 2 
Faxon’s colored figure -......... 1 i 2 2 1 2 3 
Faxon’s juvenile No. 1........ 1 1 2 3 2 il 2 
Faxon’s juvenile No. 2........ il 1 2 2 2 if 2 
Faxon’s juvenile No. 3 ......-- 1 1 2 2 2 il 2 
‘¢ Albatross’? California speci- 
1S ee ee 1 1 1 3 2 il 2 
In Bouvier’s paper cited in synonymy above, the name agassizi for Faxon’s 
caecus is introduced without comment: ‘‘ ... EH. Agassizi (—=E. cecus Faxon) 
2) 
Owing to the fact that Bate had only one immature specimen it is not easy to 
point out a number of valid differences between his species and that described by 
Faxon; but one which seems to be of prime importance is the presence of only 
one median spine on the base of the telson in Bate’s material whereas all of 
Faxon’s specimens and my own have two, a character which would immediately 
separate them in the key given by Selbie (1914, p. 28) for the species of Eryonicus. 
Family PALINURIDAE 
Carapace longitudinally subcylindrical, with rostrum wanting or represented 
by a tooth. Orbits only partially excavated; the eyes may be protected by a 
spine above or below, or both, but are never lodged in true orbits. Antennal 
peduncle four-jointed, the basal joint fused with the epistome; with a long, 
cylindrical, quite rigid, multiarticulate flagellum. Telson roughly square behind. 
Genus Panulirus White 
No central rostriform tooth. The ocular segment exposed and membranous, 
ocular peduncles small and free. Flagella of antennules long and slender, their 
segment produced considerably in advance of the frontal margin, and generally 
armed with strong teeth. 
