Analytical Notices 119 



The unknown species he has described are 1st, Dian^A. glacialit; 

 campanulata, pistillo ore quadrangalare, costis quatuor cirrl.pro- 

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

 ^d. AsTtRi AS polar is ; peatagona, pagina superiore tesselato-gra- 

 ■nulata, margine articulate ^pinoso : a single specimen was taken 

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

 ■proboscideus ; proboscide corpore duplo longiore, maadibulis nul- 

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

 North Georgian Islands. 4th. Ivotek Baffini; linearis, anten- 

 nis externis corpore longioribus, dorso spiiioso, caudse segraento 

 ultimo elongate, apice subulato : brought up by the traXvl 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. 

 T ALnnvs Edvardsiw ; rostro corniformi, antenuis subaequalibus, 

 corpore ovato depresso, caud^ compressa, tricarinata, spinosa : 

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

 TALiraus CyanecB ; capite obtusissimo, antennis subajqualibus, 

 corpore latiore, pedibus quatuor anticis inunguiculatis: parasitic 

 on the Cyanea arctlca. 8th. Qkkhgos septemcarinatus ; thorace 

 septemcarinato; carinis serratis ; pedibus secundi paris brevissimis 

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

 Strait. 9th. AhPiihvs polaris ; thoracis dimidio posteriore lasvi, 

 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 arc described by Mr. Gray in 

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

 bably only a variety of Buccm. corneuvi. 2d. Nucula urctica. 

 Testa ovali-elliplica, l<evis, tenuis, fragilis, fiavescens ; latere an- 

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

 CAKiA crenalu ; testa ovali-elliptica, virescens, concentric^ sul- 

 cata; luuulk oblongo-lanceolat^ impressa ; margine crcnulato. 

 4th. CiiAssiNA urctica ; testa subrotundo-ovata, convexa. nigra, 

 concentrice slriokta 3 unibuney bubsulcati ; lunula impresja ob> 



