in the Depths of the Sea. 



429 



Classis Tunic ata. 



fath. 



Ascidia obliqua, Alder 300 



Cynthia Lovenii, Koran fy Da- 

 nielssen, MS 300 



cinerea, Sars, n. sp 300 



limacina, Forbes 220 



=4 



Classis Bbachiopoda. 



Crania anomala (Patella), O. 

 F. Miiller 250 



Terebratula (Terebratulina) 

 caput serpentis (Anomia), 

 LinnS 300 



(Waldheimia) cranium, 



O. F. Midler 300 



( ) septata, Philippi 



(T. septigera, Lovdn) 300 



= 4 



Classis Conchifera (Lamelli- 

 branchiata). 



Anomia ephippiurn, Linne, var. 



squamula et aculeata 300 



Pecten septemradiatus, O. F. 



Midler 300 



abyssorum, Loven, MS. . . 300 



vitreus, Chemnitz 300 



mammillatus, Sars, n. 



sp 450 



similis, Laskey 300 



Lima excavata (Ostrea), J. C. 



Fabricius 300 



elliptica, Jeffreys (L. sub- 



auriculata, Forbes fy Hanley) 300 



Sarsii (Limea), Loven . . 300 



Limopsis minu ta(Pectunculus) , 



Philippi 450 



Area peetunculoides, Scacchi 

 (A. raridentata, Wood), for- 

 ma minor 300 



, Scacchi, forma ma- 

 jor (Area glacialis, Tor ell) . . 300 



fath. 

 Area nodulosa, O. F. Miiller . . 250 

 Yoldia pvgmsea (Nucula), 



Minister 300 



lucida, Loven 300 



nana, Sars 300 



obtusa *, Sars, now sp. . . 300 



Nucula \mmi\a, Asbjornscn,MS. 450 



■ tenuis ( Area), Montagu. . 300 



Crenella decussata (Mytilus), 



Montagu 300 



Mytilus phaseolinus (Modiola), 



Philippi 300 



Cardium minimum, Philippi 



(C. suecicum, Peeve) 300 



Astarte sulcata (Pectunculus), 



Da Costa, Jeffreys 300 



, var. scotica (Venus), 



Maton cy Racket 250 



Kelliella abyssicola, Sars, n. g. 



et sp 450 



Montacuta substriata (Ligida), 



Montagu 250 



Axinus flexuosus (Tellina), 



Montagu 450 



■ pusillus, Sars, n. sp 450 



ferruginosus (Kellia), 



Forbes 300 



Poromya granulata, Nyst (Em- 



bla Korenii, Loven) 300 



Scrobicularia alba (Mactra), 



Wood 300 



nitida(Mya), O. F. Miiller 300 



Lyonsiella abyssicola, Sars, n. 



g. et sp 450 



Saxicava rugosa (Mytilus), 



Linne, var. arctica 300 



Panopea plicata (Mytilus), 



Montagu (Saxicava fragilis, 



Nyst) * 300 



Neaera rostrata (Mya), Spengler 300 



obesa, Loven 450 



abbreviata, 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 (Nucula gib- 

 bosa, Smith) of Y. pygmcea, 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 hinge-teeth (dent. ant. 11-15, post. 18-27), 

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



