82 



lamelliform. being coarsely denticulate both at the edge and the outer face, mar- 

 ginal Betffi MTV delicate, and only :> in number. 



M" : .-mbling that of tin- pi- -ceding species, but somewhat more slender 



in fiinn. 



l'.ml\ in both sexes of a pah- \elhnv colour, with a broad transverse 

 Kami of a rich crimson across tin- back, occupying the dorsal parts of the tirst 



_'iuents ..|' nietasonie. 



I. .ii-th of adult female 0.80 nun.. of male u.iiu mm. 



/.'<//<>///>. This is unipie>tionabl\ the species originally described by Nor- 

 man from thr Shetland Nlcs nndei- the above name. His statements about the 

 colour of the animal 1 ) leave no doubt as to the correctness of this assumption. 

 Though very nearly related to the pn 'ceding species, this form may be easily 

 iiiLMiished l.y the le-> robust body, hut especially by the uniform appearance 

 if tin- rpimeral phi' The form of the last pair of legs in the female is al>o 



conspicuously different, and. as above -tated. the colour of the body is very 

 characteristic. 



nee. I have found this form not (infrequently in several places 



on the west .-oast of Norway, as also in the Trondhjem Fjord. It occurs only in 

 depths varying from ii to I'D fathoms, generally on Lnin'inni'tu tnci-lnti 'n/n. but also 

 on other al.u f :'. and never in the littoral /one. 



/ )i*tril>iiHf,it. -Shetland Isles (Norman). 



Gen. 22. Psamathe, I'liilippi. ISKi. 



S\n: Srul,-U'nli\nn. Glaus. 



' luinicl' , . \nterior division of bod\ -oineuliat depressed, though 



ly 1\ peiiorm. and \\ithout an\ hyaline rim at the edges. Rostral projection 



obtuse, not lamellar, nor distinctly delined at the hase. Kpimeral plates of the 



tirst :; free segments of metasome discontig ...... s at the tips, not imbricate. Last 



nient of metas,,me |'reel\ exposed behind. \ery small, and without any distinct 

 epimeral pl.-r I'rosome more m- less elongated, and slightly dilated in its 



anterior p; t rt. uidal rami well developed, though rather shoi't. apical seta- 



-lender :md -omewhat di\ ei -ent. |-!\ e normally developed. Anterior antenna' 



''"I'i'ir |-;il''. "itli a nili\-ri,|,,nrr.| l'.i-ci;i ,.n id,. L>i,,l :iinl :Jnl. nrLJinl. :!nl. and lili 

 ! '-"|'li:i: ' 1111:111). 



