CRUSTACEA MAI.ACOSTRACA IV. 63 



55. Diastylls echinata Kate. 



1865. /'/.is/v/is M/mu/.i Bate. Ann. Mag. Nat. Hist. Set. 3. Vol. XV. p. 81. I'l. I. fix. i. 

 11909. G. O. Sars. Account. III. p. 57. I'l. XI.III. 



1913. CC/HIKI/M.S Stebbing. Das Tierreich, 39. I.u-i p. 104. 



It may be mentioned that the Kpicarid Cumoechus insignis H. J. II was found in tin marsupium of 

 two specimens from Lat. 6iO7' N., Long. 9^30' W. 



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



Davis Strait: Stat. 32: Lat. 6635' N.. Long. 56 38' W., 318 fath., temp. 3.9" '; 3 specimens. 

 Stat. 25: Lat. 633o' N.. Long. 54^25' W., 582 fath., temp. 3.3 "; 3 sj>ccimcns. 



Besides captured by the "Thor" at 3 places within the "Ingolf" area. 



South of Iceland: Lat. 63 15' N., Long. 2223' W., 114 172 fath.; i specimen. 



South-West of the Fa?roes: Lat. 6ii5' N.. Ix>ng. 9 35' W., 463 515 fath.; 38 specimens. 



Iat. 6i07' N.. Long. 93o' W., 443 fath.; 19 specimens. 



Distribution. Taken some few times in Skager Rak in depths from no to 350 fath. (Meinert. 

 H. J. Hansen). At Norway distributed along the coast from Christiania Fjord to Hasvig in West Finmark, 

 loo to 417 fath. ((1. O. Sars). /immer recorded it from north of Spitzbergen, Iat. 81 "20' N., I,ong. 2o']o' F... 

 531 fath.. which is somewhat suqmsing. Sars recorded it from off Norway in the cold area at two stations, 

 viz. Lat. 664i' N.. Long. 659' E.. 350 fath., temp, -f 0.9, and Lat. 63io' N.. I/ong. jjV F... 417 fath., 

 temp. 4- I.o; Bates' type was taken off Shetland, and Norman recorded it from a place south-east of the 

 Farroes: Lat. 6o j lo' N., Long. 559' W.. 550 fath.; Caiman mentions it from a place west of Ireland, 199 

 fath. 1 



56. Diastylis longicaudata Bonnier. 

 (PI. IV. fig. 5 a). 



11896. Leptostylis longicaudata Bonnier, Ann. 1'1'nivers. Lyon, vol. XXVI, p. 557. PI. XXX. fig. 2 a o. 

 1913. Adiastylis longicattdatus Stebbing, Das Tierreich, 39. Lief., p. 115. 



Bonnier established this species on an immature female a little less than lomm. long. Three sjK-cimens 

 from a single locality I refer to this form, though they differ in some particulars from his description. Tin- 

 two largest sj>ecimens are females with the marsupium half developed and measuring 8.1 nun. 



The carapace agrees in outline completely with Bonnier 's figure, and it is, as described by him, 

 studded with innumerable denticles which, for the rest, differ considerably in size; the anterior half of the 

 lateral margin behind pseudorostrum is finely serrated with obtuse teeth, and this serration is partly indicated 

 in Bonnier's figure. The shape of the thoracic segments and abdomen, the antennulx. the third pair of 

 maxillipeds with a thick spine on the lower side of merus, the small but very- distinct, biarticulated cxopods 



1 In -Fauna Arctica- X.inmirr refer* /' ifrinom Norman (1869) * synonym to f) tckinala, which it wrong (/' t 

 U the male of It Kalkkii}. hot the result u. that in his list of distribution the rrfcrrncr to Norman in \*>-i aod to Urtrr. 

 M&bins and Hhrmbaum on the . occurrrnce of D. tfkimtla in the North Sea most br rancrllnl. That /.immrr't .tatrmmt linu>br 

 Owaawr. 350 P. (Norman IM)' wrong U easily seen, as no uch depth is to be founil near Denmark, but he has detfon- 

 ated Norman's locality, the Farroe Channel, as xlaniscne Oewaaser.* 



