CRUSTACEA MALACOSTRACA. III. 2 OJ 



(fig- 13 a ) are moderately thick; first joint has the anterior margin only somewhat shorter than the 

 posterior, and some three triangular teeth are found at the last-named margin; second joint is a little 

 longer than the first, with two small and slender teeth on the posterior margin and a few teeth of 

 different size on the posterior part of the lower surface; third joint with five or six sensory setae. — 

 Length of the specimen examined o-8i mm. 



Occurrence. Taken by the "Ingolf" at five stations. 



Davis Strait: Stat. 33: Lat. 6j°^' N., Long. 55°3o' W., 35 fath., temp. o-8°; on 6 spec, of Spiron- 



tocaris spinas and on 1 spec, of Pandalus Montagui. 



— Stat. 29: Lat. 65°34' N., Long. 54°3i' W., 68 fath., temp. 0-2°; on 1 spec. oiSpir.spinus. 



— Stat. 34: Lat. 65°i7' N., Long. 55°i7' W., 55 fath.; on 2 spec, of Spir. spinus and 1 



spec, on Spir. polaris. 



North of Iceland: Stat. 127: Lat. 66°33' N -> Long. 20°05' W., 44 fath., temp. 5-6°; 1 spec, on Pan- 

 dalus Montagui. 

 — - Stat. 126: Lat. 67 ° 19' N., Long. i5°52' W., 293 fath., temp. -=-0-5°; 1 spec, on 



Pandalus borealis. 



This species is even more common than Bopyroides hippolytes at both sides of Greenland. Ac- 

 cording to my Malac. Groenl., Stephensen's Conspectus, and a number of specimens taken since 1887 

 and hitherto not recorded, it has been taken at three places in Grinnell Laud, the most northern being 

 in Lat. 8i°44' N.; in Lat. 777^ N., and Lat. 76°09' N. at West Greenland (Ohlin); in Baffin Bay and 

 Davis Strait off or at West Greenland at about sixteen places between Lat. 72°47' N., and Lat. 6i7 3 ° N., 

 and five new localities may be enumerated, viz. Umanak, Jacobshavn, Egedesminde, Kvanefjord, and 

 Bredefjord. In that area it has been taken on Spirontocaris spinus, S. polaris, S. turgida, S. macilenta, 

 S. Gaimardii, Pandalus borealis and P. Monlagui. — At East Greenland it is common. At Angmagsalik,' 

 Lat. 65°3o' N., it was taken by Mag. Kruuse on 5". polaris, and by the Ilnd Amdrup Exp. on S. Gai- 

 mardii, 9—0 fath.; in Lat. 69°4o' N., Long. 23°3o' W., 120 fath., on S. polaris by the Ilnd Amdrup Exp.; 

 in Hekla Havn, Lat. 70°27' N., on 6". turgida by the Ryder Exp.; by the Danmark Exp. at several 

 places between Lat. 76°4o' N. and Lat. 76° 50' on S. polaris, S. turgida and S. Gaimardii (Stephensen); 

 finally by the Duke of Orleans at Lat. 77°3i' N., Long. i8°24' W., 146 fath. (Grieg). — At Jan Mayen 

 it was taken by the Ilnd Amdrup Exp. on 5". Gaimardii, 55 fath., and had been recorded from that 

 place by Koelbel. 



At Iceland this parasite is not uncommon, having been taken by various collectors in depths 

 from 2 — 4 to about 50 fath., generally on S. Gaimardii, but a single specimen on 6". polaris; at the 

 west coast it was found in Skutils Fjord, Onundar Fjord, Dyre Fjord and near Reykjavik; on the east 

 coast in Mid Fjord, Seydis Fjord and Rode Fjord. Cand. mag. Ad. Jensen has taken it on Pandalus 

 Montagui east of Iceland at Lat. 04°i7' N., Long. I4°44' W., 45 fath. — It is not known from the Faeroes. 



Distribution. At Denmark taken in the Belts, in Kattegat and in Skager Rak — in the 

 last-named area in from 70 to 275 fath. — on four of the five above-named species of shrimps (H. J. 

 Hansen), but when Meinert recorded it as taken at Hellebaek, northern part of the Sound, on Crangon 

 Allmani, I suppose now that this statement is due to some misscript or error. According to Sars it is 

 known from the whole coast of Norway from Christiania Fjord to Vadso, living on Spir. Gaimardii, 



