in the Dejjths of the Sea, 



429 



Classis TuxiCATA. 



fa til. 



Ascidia obliqua, Alder 800 



Cyutliia Lovenii, Koren ^- Da- 



nielssen, MS 300 



einerea, Sars, n. sp 800 



limacina, Forbes 220 



=4 



Classis Brachiopoda. 



Crania anomala (Patella), O. 



F. Mill/er 2o0 



Terebratula (Terebratulina) 



caput serpentis (Anomia), 



Linn^ 300 



(Waldlieimia) crauium, 



O. F. Midler 300 



( ) septata, Philippi 



(T. septigera, Lov6n) , 300 



= 4 



Classis Conchifeba (Lamelli- 

 branchiata). 



Anomia ephippiimi, Linne, var. 



squamiila et aculeata 300 



Pecten septeniradiatus, O. F. 



Midler 300 



abyssorum, Loven^ MS. . . 300 



\-itreus, Chemnitz 300 



mammillatus, Sars, n. 



sp 4^50 



similis, Lasl;etj 300 



Lima excavata (Ostrea), J. C. 



Fabridus 300 



elliptica; Jeffreys (L. sub- 



auriculata, Forbes ^- Hajdcy) 300 



Sarsii (Limea), Loven . . 300 



Limopsis niinu ta(Pectunculus) , 



PhUippi 4^0 



Area pectimculoides, Scacchi 

 (A. raridentata, JFoof/), for- 

 ma minor 300 



, Scacchi, forma ma- 

 jor (Area glacialis, Tor ell) . . 300 



filth. 

 Area nodulosa, O. F. Midler. . 250 

 Yoldia pvginsea (Xucula), 



MiinMer 300 



lucida, Loven 300 



nana, Sars 300 



obtusa *, Sars, nov. sp. . . 300 



Nucula pumila,^A-6/V)>7i*7>«,MS. 450 



tenuis (Area), 3/o«^fl(/?<. . 300 



Crenella decussata (Mjiiilus), 



Montagu 300 



Mytilus phaseolinus (Modiola), 



yhilippi 300 



Cardium minimum, Philippi 



(C. suecicum, lieeve) 300 



Astarte sulcata ( Pectunculus), 



Da Costa, Jeffreys 300 



, var. scotica (Venus), 



Maton ^- Racket 250 



Kelliella abyssicola, Sars, n. g. 



et sp 450 



Moiitacuta substriata (Ligula), 



3Ioutayu 250 



Axinus flexuosus (Tellina), 



Montayu 450 



■ pusillus, Sars, n. sp 450 



ferruginosus (Kellia), 



Forbes 300 



Poromya granulata, Nyst (Em- 



bla Korenii, Loven) 300 



Scrobicularia alba (Mactra), 



Wood 300 



mtida(Mya),0. J: J/»/fcr 300 



Lyonsiella abyssicola, Sars, n. 



g. et sp 450 



Saxicava rugosa (Mytilus), 



Linne, var. arctica 300 



Panopea plicata (M\-tilus), 



Montagu (Saxicava fragilis, 



Nijst) 300 



Neajra rostrata (Mya), Spetigler 300 



obesa, Loven 450 



abbrev-iata, Forbes 300 



(sec. Koren). 

 lamellosa, Sars, n. sp. . . 300 



= 37 



* Yoldia obtusa. This I formerly named Y. abyssicola; but it is very 

 distinguishable from the form described under the same name by Torell, 

 ■which is nothing more than the common northern variety (Nuctda gib- 

 bosa, Smith ) of Y. pygmfpa, Miinster. To avoid confusion, I have there- 

 fore called my new species Y. obtusa. It is nearest to Leda obesa, Stimp- 

 son, but is more than twice as large. The back of the shell is both longer 

 and higher, and it has many hingu-teeth (dent. ant. 11-15, post. 18-27), 

 while Y. obtusa has dent. ant. 10, post. 12 (Stimpson). 



