the TrondJiJrm Fiord. 273 



Two specimens, hotli presenting ])cculiaiities. One is more 

 slender in form than usual and has the rostrum less deep and 

 much longer, equal to twice the length of the eye ; it bears 

 ten teeth above, of which six arc articulated on the carapace 

 and two are situated beyond the extremity of the eye ; there 

 is usually a cilium in front of each tooth of the carapace, but 

 in this specimen it is absent ; there are three teeth on the 

 underside of the rostrum of larger size than usual. The 

 second specimen has the rostrum somewhat shorter, with 

 eight teeth above of which five arc on tlie carapace, and four 

 below, the two ])roxiinal of which are of good size and at 

 some distance from the extremity. 



14. Caridion Oordoni^ Bate. 

 Rodberg, 150 fathoms. 



15. Pasiphcea tarda^ Kriiyer. 



1845. Pasiphae tarda, Krciver, Naturhist. Tidsk. Auden Roekkes, vol. i. 



p. 45:1 

 1844? Fasiphcea tarda, Kroyer, Voyage en Skandinavie Sec. pi. vi. 



tips. A, B, a-o *. 

 1868. Pasiphae norvegica, M. Sars, Bidrag til Kunds. cm Cliristiania- 



fjordens Fauna, p. 42, pis. iv. and v. figs. 65-90. 

 1882. Pasiphae tarda, G. O. Sars, " Overs, af Norges Crustaceer, I." 



(Vidensk.-Selsk. P'orhand. Christ.), p. 42 (separate copy). 



A single specimen off Hodberg in about 300 fathoms. 



The chief points which distinguish this species from P. si- 

 vado, our British species, are tiiat the telson is cleft at the 

 extremity and that there is no spine over its base on the 

 hinder margin of the preceding segment. The segments are 

 also strongly keeled dorsally. 



Both P. sivado and P. tarda are usually found in depths 

 exceeding 80 fathoms ; but on one occasion, about forty years 

 ago, I found the former in enormous quantities in stake-nets 

 which had been set between tide-marks at Clevedon, Somer- 

 set ; and these could not have temporarily come out of deep 

 water, since the whole of the Bristol Channel is shallow. 



M Y S I D E A. 



Descriptions and admirable figures of the following Schizo- 

 pods will be found in G. 0. Sars's " Monog. over de ved 

 Norges Kyster forekommende Mysider," and descriptions of 

 such as are found in Britain in my paper on British Mysidee 

 in Ann. & Mag. Nat. Hist. ser. vi. vol. x. 1892. 



* The generic name in the Voyage en Scand, is spelt Pasiphcea, and 

 this is the spelling of Savigny, who instituted the genus. 



