86 IOWA STUDIES IN NATURAL HISTORY 
This species is put in the genus Periclimenes (sensu latu) for want of 
more suitable one. In Kemp’s ‘‘Key to the genera of Pontoniine’’15 
it falls in the same section with Pontonides and Balssia to either of 
which it certainly does not belong, though the third maxilliped is not 
unlike that of the former figured by Borradaile.16 Except for the lack 
of the exopodite on this member, the species is more nearly a Periclimenes 
than otherwise. The bifurcation of the thicker antennular flagellum, the 
anteriorly sharply angled blade of the antennal scale, the absence of the 
hepatic spine, the long slender fingers of the second leg in conjunction 
with a short carpus, and the occurrence of both pairs of dorsal spines 
on the proximal half of the telson are somewhat unusual for the genus. 
The posteriorly flattened, dorsal margin of the rostrum bears some re- 
semblance to that presented by Borradaile’s dorsal view of Pericliémenceus 
fimbriatus.17 
The carapace and rostrum of the male hototype are each 4 mm. long, 
abdomen and telson 11 mm., and the telson alone 3 mm. long. 
Family Atyide 
Xiphocaris elongata (Guérin) 
Hippolyte elongata Guérin, in La Sagra’s Hist. Cuba, VII (1857), p. 
20; VIII, pl. 2, fig. 16. 
Xiphocaris elongata Rathbun, Bull. U. S. Fish Comm., XX, pt. 2, 1900 
(1901), p. 118. 
Indian River, Barbados; four specimens. Fresh-water, north 
of Bridgetown, Barbados; six specimens. 
Ortmanna serret Bouvier 
Ortmannia serrei Bouvier, Bull. Mus. Hist. Nat., Paris, vol. 15, 1909, pp. 
331, 332 [3, 4]. 
Bridgetown Beach, Barbados; one ovigerous female. 
Family Stenopide 
Stenopus semilevis von Martens 
Stenopus semilevis von Martens, Archiv f. Naturg., XXXVIII (1872), p. 
144.—Rankin, Ann. N. Y. Acad. Sci., XI, no. 12 (1898), p. 241, pl. 
39, fig. 2. 
English Harbor, 1; one specimen. English Harbor; one 
ovigerous female. Pelican Island, tide pool, May 11; one spec- 
imen. 
Family Palinuride 
Panulirus argus (Uatreille) 
Palinurus argus Latreille, Ann. Mus. Hist. Nat., Paris, III (1804), p. 393. 
15 Ree. Indian Mus., XXIV, pt. 2 (1922), pp. 119-121. 
16 Trans. Linn. Soc. London, (2), Zool., XVII, pt. 3 (1917), pl. 57, 
fig. 28. 
17 Op. cit., pl. 55, fig. 19b. 
