AMPHIPODA OF SOUTHERN NEW ENGLAND. 525 



nearly twice as long as it is broad, palm having in the middle a deep sinus defined by two projecting 

 lobes, the posterior of which is acute, the anterior subtruncate at the tip, dactylus very strong and 

 curved." 



NOTES ON KXTKALIMITA1, SPECIES OF GAMMARIDEA. 



The following species were found in the collections sent me for examination: 



Metiigrali-s ubtusifrous Boeck, Grand Manan. 



Monoculodes borealis Boeck, five specimens in a bottle labeled Monoculodes nubilatus Packard, Lab- 

 rador. There was also a specimen of Parcediceros lynceus in the bottle. The nubilatus of Packard is, 

 I believe, synonymous with the latter species, as it has been ranked by Professor Smith. M. borealis 

 may prove identical with M. demissus Stimpson, but the latter is so poorly described that the identifi- 

 cation is very uncertain. 



Ampelisca eschrichti Kroyer, Caribou Island, 8 fathoms. This specimen was in Packard's collec- 

 tion and named A. pelagiea Stimpson. 



Haploops tubicola Lilljeborg, Chat Bay, Labrador, 30 fathoms. In Packard's collection, together 

 with Byblis gaimardi Kroyer. The bottle containing these specimens was labeled Ampelisca gracilis 

 Packard. 



Haploops robusta Sars. Grand Manan; Bay of Fundy, and Albatross station 2572, together with 

 H. luliicola. 



Haploops setosa Boeck, Albatross station 2055. 



Byblis gaimardi Kroyer, Eastport, Me., besides the locality mentioned above. 



Melphidippa spinosa (Goes), Eastport, Me. 



Msera danse (Stimpson) (Leptothoe dana Stimpson), Eastport, Me. 



Dulichia porrecta Bate, Eastport, Me. 



Tribe CAPRELLIDEA. 



Head fused with the first thoracic segment; second gnathopods larger than first; anterior perse- 

 opods generally wanting; posterior pairs prehensile; gills usually confined to third and fourth 

 thoracic segments; abdomen rudimentary. 



The Caprellidea are divided into two families, the Caprellidse and the Cyamidse. The latter 

 family is composed of species parasitic upon the skin of whales. Only the Caprellidse, therefore, come 

 within the scope of this paper. 



Mandible with palp Aeginella 



Mandible devoid of a palp Caprella 



.ffiginella long-icornis (Kroyer). 



rfSgiiia apvnosUsvma Stimpson, Marine Invert. Grand Manan. p. 65, 1853. 



Body slender, smooth, or armed with numerous spines; head often furnished with a pair of dorsal 

 spines; eyes small; first antennas long, last joint of peduncle nearly as long as 

 preceding one; flagellum shorter than peduncle; second antennae extending but 

 little beyond penultimate basal joint of first pair, last joint of peduncle longer 

 than preceding one; flagellum shorter than last joint of peduncle and two-jointed; 

 hand of tirst gnathopods with palm nearly straight, extending to the proximal 

 end of hand where it is defined by a spine; second gnathopods with basal joint 

 more or less dentate in front and produced below into an acute lobe; ischium 

 and merus with an acute inferior process; band with a triangular tooth at upper 

 end of palm; a narrow tooth below the middle separated from a triangular emi- 

 nence below by a narrow sinus: distal end of band produced into a tooth above 

 the base of dactyl; anterior pair of abdominal appendages two-jointed. 



Length, 16 mm. 



Siberia; Greenland; Labrador; Grand Manan; Eastport, Me.; Ipswich Bay; -B/"""" lungteornw, 



Narragansett Bav; W Is Hole. ™. epinississimus. 



After Sars 

 The development of the spines on the body is very variable. In some speci- 

 mens they may be reduced to small tubercles, while in others they may be entirely absent. There 

 seem to be all gradations between forms which are very spiny and forms in which the body is smooth 



B. B. F. 1904—34 



