244 RANKIN. 



eleven spines each, on the ventral margin a single row of nine 

 spines ; two or three rows of minute spines on lateral surfaces. 

 A number of long, soft hairs over the fingers, especially at the 

 tips. Hands of the two chelapods similar in size. Carpus and 

 ischium together about equal to propodos, each armed with 

 rows of spines. Fourth pair long and slender ; dactylus bifid ; 

 propodos slightly spiny, one-half length of carpus. Caipus 

 and propodos obscurely articulated. Fifth pair pereiopods un- 

 developed. Pleopods biramous, except first, with two or three 

 spines each on the protopodite. 



From the single specimen at my disposal I would compare 

 this species with 5. liispidus as follows : Rostrum proportion- 

 ately longer (nearly ^ length of cephalothorax, in ;/. sp. (^ in 

 Jiispidits), longer than peduncle of inner antennae. Six ventral 

 teeth {Jiispidus none), no lateral teeth, single dorsal row of ten 

 teeth {Jdspidus six). Flagella of outer antennae fully twice the 

 length of body; proportion 2:1 for n. sp.^ 7:5 for Jdspidus. 

 Tergum of third abdominal segment with shield-shaped area. 

 Third maxillipedes proportionately shorter than in Jdspidtis. 

 Spines on cephalothorax equally long, but less rigid than in 

 hispidiis, giving in general a less thorny character to the new 

 species. 



EUCIPHIDEA. 



Family Palaemonidae Bate. 

 53. Palsemon savignyi (Bate). 



Brachycarptis savignyi Bate, Challenger, Macrura, p. 795, PI. 



129, 1888. 



Ortmann, Z06I. Jahrb., Bd. V, p. 727. 



(a) I specimen. Near Nassau, N. P., Febr., '90. 



(p) I specimen. Nassau, N. P., 1890. 



(6) 5 9 with ova. Nassau, N. P., 1890. 



Bate's specimen was from Beimuda, '* in shallow water." 



"■ This is the most northern limit of genus Palaemon," Ort- 

 mann. 



The species has not been described from any other localities. 



