ATLANTIC AND CARIBBEAN PYCNOGONIDA—HEDGPETH 221 
limb buds, “since the proboscis, whatever its morphological nature 
may be, is not a somite.” 
On the whole, the species of Anoplodactylus are a nondescript lot 
of variable organisms separated by rather vaguely defined characters, 
and identification is not always certain unless both sexes are available. 
There are at least 13 species from the Caribbean region alone, 11 of 
which are included in the following key, according to general char- 
acters applicable to both sexes. An unidentifiable species (A, p. 236) 
from Tortugas is not included in this key, but the male is separable 
from all the other species in the region on the basis of a very slndeer 
tubular cement gland at the distal end of the femur. Another species 
(B, p. 236), represented by a single damaged female specimen, can be 
separated on the basis of its large chelae, unadorned legs, and a short, 
tuberclelike projection on the propodus. 
Williams, in his short paper on the “revision” of this genus (1941), 
presents a map indicating the occurrence of Anoplodactylus parvus off 
Venezuela instead of Bermuda, A. maritimus just east of the Virgin 
Islands instead of south of the Azores, and placing Bermuda about 5° 
east of its true position. It is unfortunate that more care was not 
devoted to the preparation of this map, which does indicate the 
predominantly tropical distribution of the genus. 
KEY TO THE SPECIES OF ANOPLODACTYLUS DISCUSSED IN THIS REPORT 
1. Second tibia not markedly shorter than first_..............-.-_-------- 2 
Second tibia less than half as long as first__.__.___.________ evelinae (p. 232) 
PERO ORCIS OY MNCMONL = - og oA at a Sa nn Aa ns ee Se Ee 3 
Proboseis styliform: ~2o.. 22 = 22...-2222- stylirostris, new species (p. 232) 
3. Eye tubercle and abdomen not conspicuously long; sole of propodus without 
SGMETC SPINCS Ie 2s 46 he bee. oe eer eed. eS eel) ed ae 4 
[Fingers of chelae (spinose, except at tips?) conspicuously longer than palm (usually about as long as 
palm in other species in this group); propodus with a long, bluntly rounded projection at its distal 
end (Mediterranean, North Africa). (Sp. B, p. 236, has a short tubercle on the propodus). 
massiliensis Bouvier] 
Eye tubercle and abdomen very long, erect; sole of propodus with a row of 
BURNERS ADMNO A 222 A quadratispinosus (p. 232) 
4. With prominent conical or rounded projections at end of femur______-__- 12 
Mateus, such processes on femurs. 22. oi Loo So ee eo oe ee ee 5 
3.) Basal spines of propodus simiplen.o/is2- 22 [ue oles ae SE 6 
Largest basal spine denticulate______________ pectinus, new species (p. 234) 
6. Fingers long, slender, with setae; palm elongate or angular____.____-___-_-- 7/ 
Fingers of chela short, curved, opposed, or slightly crossed____...-.------- 8 
7. Eye tubercle very low, eyes present.._.._..._------- Pmaritimus (p. 230) 
Eye tubercle imperceptible or lacking, eyes absent_____- typhlops (p. 228) 
8. With low tubercles at ends of lateral processes, or basal spines of propodus less 
than half as long as width of propodus___--.---.----------------.. 9 
Without tubercles or processes on lateral processes; basal spines on propodus 
at least half as long as width of the propodus_________---- lentus (p. 225) 
9. Eye tubercle not conical or conspicuously broader at base; two or three or 
more large spines on heel of propodus____-_-_-_---_---------------- 10 
746333—48——_5 
