CRUSTACEA MALACOSTRACA. III. 



171 



115. JDga monophthalma Johnston. 



1834. s£ga monophthalma Johnston, Loudon's Mag. Nat. Hist Vol. VII, p. 232, fig. 43, a, b. (test. Norman). 

 1879. — — Schiodte & Meinert, op. cit. p. 365. 



! 1897. — G. O. Sars, Account, II, p. 62; PI. 26, fig. 1. 



The greatest size recorded of the female without marsupium is 56-5 mm. According to the 

 literature it lives on Gadus morrhua and Somniosus microcephalus\ Dr. Joh. Schmidt took a fine male, 

 45 mm. long, on Centrophorus squamosus. 



Occurrence. Not taken by the "Ingolf. But it was recorded from Iceland (Sell. & Mein.), 

 and the above-named specimen from Centrophorus was secured south-west of the Faeroes in Lat. 6i°o8' N., 

 Long. 9°28' W., 377 fath. 



Distribution. A couple of specimens secured at the north coast, and a third specimen at 

 the west coast of Jutland (Meinert, H. J. Hansen). At Norway taken in the Christiania Fjord and at 

 a few places on the south and west coasts, northwards to Trondhjem Fjord (G. O. Sars). At Great 

 Britain found at Shetland, in Moray Firth, finally at Northumberland and Durham (Bate & Westwood; 

 Norman). 



116. iEga arctica Liitken. 

 (PI. XIV, fig. 6 a). 



1859. &ga arctica Liitken, Vid. Medd. Nat. Foren. Kjobeuhavn for 1858, p. 71; PI. I. A., figs. 1—3. 

 1879. — — Schiodte & Meinert, op. cit. p. 374. 

 ! 1897. — — G. O. Sars, Account, II, p. 63; PI. 26, fig. 2. 



The greatest female without marsupium recorded in the literature was 43 mm. long, the greatest 

 male 36 mm. But at Egedesminde, West Greenland, the Rev. Sorensen has secured a distended female 

 without marsupium measuring 47 mm. Females with marsupium were hitherto unknown, but as al- 

 ready stated, the "Ingolf has captured five such females at three stations; one among them is only 

 32-3 mm. long, but the two largest specimens are 40 mm. long. — It has been taken several times on 

 Somniosus microcephalics. 



Fig. 6 a, representing the proximal half of first left pleopod, has been described above on p. 163. 

 Occurrence. JR. arctica has been taken in trawl or dredge by the "Ingolf at five stations. 

 Davis Strait: Stat. 25: Lat. 63°3o' N., Long. 54°25' W., 582 fath., temp. 3-3°; 3 spec. (1 ovigerous $). 

 West of Iceland: Stat. 90: Lat. 64°45' N., Long. 29°o6' W., 568 fath., temp. 4-4°; 7 spec. (2 ? with 



marsupium). 

 — - Stat. 89: Lat. 64°45' N, Long. 27°2o' W., 310 fath., temp. 8-4°; 7 spec. 



South- West of Iceland: Stat. 81: Lat. 6i°44' N, Long. 27°oo' W., 485 fath., temp. 6-i°; 5 spec. 



Stat. 78: Lat. 6o°37' N, Long. 27°52' W., 799 fath., temp. 4-5°; n spec. 



(2 ? with marsupium). 

 According to Schiodte & Meinert it has been taken frequently at West Greenland, but only 

 two special localities were recorded, viz., Umanak, in Lat 70°4o' N, and Hundeoerne near Egedesminde, 

 Lat. 68°42' N. Later it has been recorded from Lille Karajok Fjord, Lat. 70°2o' N. (Vanhoffen), and the 



