NO. 6 
DECAPOD AND OTHER CRUSTACEA SCHMITT 
15 
f 1 oni Barbados, off Jamaica, and Puerto Rico, had 8 , 9^ to fused 
segments and from 10 to 13 free segments. 
I do not find any characters that would indicate that the small 
specimens are other than B. biunguicidatm, although several of them 
are ovigerous. I have seen no small specimens with the segment count 
of the fully developed large ones, and therefore believe that this 
species varies considerably in the segmentation of the fused and 
thicker free portion of its outer antennular flagellum. 
The rostrum of our Clipperton Island specimen has teeth of 
3 
which the first two dorsal teeth are on the carapace, the next two are 
above the ocular peduncle, the last three are anterior to the eye ; the 
anteriormost is very close to the tip of the rostrum ; the ventral teeth 
are about as strong as the dorsal ; the proximal tooth is placed just 
proximal to the anterior marg'in of the cornea, not beyond or anterior 
to it. The rostrum is slightly longer than the antennular peduncle and 
slightly shorter than the antennal scale. 
The outer anterior angle of the basal joint of the antennular peduncle 
is armed with a well-developed spine, the tip of which exceeds the 
second joint of the peduncle. The spine of the antennal scale reaches 
to the end of the sixth article for the fused part of the outer anten- 
nular flagellum, the anterior margin of the blade to the end of the 
fifth article. The free portion of the shorter ramus of the outer 
■antennular flagellum is a little longer than the fused portion ; each 
appears to be composed of about seven articles. 
On the anterior margin of the carapace the antennal spine projects 
well in f 1 ont of the suborbital projection or angle ; the hepatic s]iine 
is placed not much below^ the level of the antennal spine and is less 
than the length of that spine behind the anterior margin of the cara- 
pace , the hepatic spine is also less than half the size of the antennal 
spine. 
The right second chela is very slightly larger than the left; it ex- 
'ceeds the antennal scale by the entire propodus. The fingers of either 
chela of this pair are slightly shorter than the corresponding palm or 
merus ; the carpal joints are a little more than half the length of the 
corresponding palms. 
CaUianassa hartincyeri Schmitt ij' 
Our specimens agree wath those figured and described by Hult 
(Arkiv Zook, vol. 30A, Xo. 5, p. 7, figs. 1-4, pi. i, 1938). On the 
chelae of these specimens there w^ere bright ochraceous to orange 
vochraceous (Ridgw^ay) irregular color markings; both fingers tow’ard 
