390 S. I. Smith on the Crustacea of Brazil. 
the female, the dactylus is short and armed on the posterior 
side of the base, with a stout process which closes against a 
similar process from the extremity of the propodus, both pro- 
cesses being hairy on the outside, and having horny spoon- 
shaped tips.—Pernambuco. 
Ipheus heterochelis Say.—Reefs of the Abrolhos. 
Palemon Jamaicensis Olivier.—Penédo, Rio Sao Francisco. 
Palemon forceps Edw.—Mouth of the Para. 
Palemon ensiculus Smith (Trans. Conn. Acad., vol. ii, p. 26, 
plate i, fig. 2—Para. 
Rostrum very long, strongly curved downward for the basal 
half of its length, the terminal half very slender, nearly straight, 
but strongly inclined upward, armed above with nine to twelve 
short teeth of which seven or eight are on the basal portion, 
‘and the others near tlre tip, and below with eight to twelve teeth. 
Peneus Brasiliensis Latr.—Bahia. i 
myer Smith, gen. noy., (Trans. Conn. Acad., vol. it, 
Carapax much as in Peneus, but the rostrum very long and 
a and the gastro-hepatic sulcus scarcely perceptible, wig 
; : ne 
very small, not expanded over the eye as in Peneus; anten- 
nulary flagella very long and 
as long as, or considerably longer than the carapax, : 
wholly unarmed below, but the peal portion with a thin | 
