Analytical Notices 119 



The unknown species he has described are 1st, Dianjea glacialis; 

 campanulata, pistillo ore quadrangulare, costis quatuor cirri-pro- 

 ductis. Found in Baffin's Bay and the adjacent seas, but rare. 

 3d. Asterias polaris ; pentagona, pagina superiore tesselato-gra- 

 nulata, margine articulato spinoso : a single specimen was taken 

 by a drag net on the coast of Melville Island. 3d. Phoxichilus 

 proboscideus ; proboscide corpore duplo longiore, maudibulis nul- 

 •lis, palpis inungulatis : found at ebb tide on the shores of the 

 North Georgian Islands. 4th. I dote a Baffini; linearis, anten- 

 nis externis corpore longioribus, dorso spinoso, caudae segmento 

 ultimo elongato, apice subulato : brought up by the trawl in con- 

 siderable numbers from twenty fathoms depth on the west coast of 

 Baffin's Bay. 5th. Gammarus loricutus ; rostro corniformi deflexo, 

 dorso carinato, segmentis postice et acute productis : in pools of 

 water left by the ebb tide on the shores of the Polar Sea. 6th, 

 Talitrus EdvardsicE ; rostro corniformi, an tennis subaequalibus, 

 corpore ovato depresso, cauda compressa, tricarinata, spinosa : 

 bronght up in the trawl on the western coast of Davis' Strait. 7th. 

 Talitrus Cyanece ; capite obtusissimo, antennis subaequalibus, 

 corpore latiore, pedibus quatuor anticis inunguiculatis : parasitic 

 on the Cyanea arctica. 8th. Crangon septemcarinatus ; thorace 

 septemcarinato ; carinis serratis ; pedibus secundi paris brevissimis 

 inunguiculatis : taken in the trawl on the west coast of Davis' 

 Strait. 9th. Alphkus polaris ; thoracis dimidio posteriore laevi, 

 anteriore carinato serrato ; chelis et unguibus apice nigris .* brought 

 up from fifty fathoms depth on the coast of Melville Island. Of 

 most of the above and of several other marine invertebrate animals 

 there are apparently correct figures in the work before us, 



Several new species of shells are described by Mr. Gray in 

 this little volume ; the first, namely, Buccm. Sabinii is pro- 

 bably only a variety of Buccm. corneum. 2d. Nucula arctica. 

 Testa ovali-elliptica, lasvis, tenuis, fragilis, flavescens ; latere an- 

 .tico lato, rotundato, postico brevi, oblique trnncato. 3d. Ni- 

 cakia crenata; testa ovali-elliptica, virescens, concentrice sul- 

 cata; lunula oblongo-lanceolata irapressa; margine crenulato. 

 4th. CrassinA arctica; testa subrotundo-ovata, convexa. nigra, 

 concentrice striolata; umbones subsulcati; lunula impres«a ob> 



