2 24 Quarterly font nal of Conchology. 



they had some boat dredging in shallow water, where among other 

 Mollusca was a living specimen of a new species of Pleiirotoma, 

 unlike any European or North American s^Decies; which is describ- 

 ed as F. rubesce7is, Jeff. 



The number of marine species procured during the expedition 

 was i8i; viz: 122 in Davis Strait, and 59 in the North Atlantic, 

 besides fragments of several undescribed species. Altogether there 

 are no fewer than 57 new species: ( Brachiopoda 2, Conchifcra 16, 

 Solenoconchia 7, Gastropoda 11, Pteropoda i, Cephalopoda o), 

 all except the Pleiirotoma from great depths. 



The author discusses the question of the mollusca of Davis Strait 

 being American or European, and gives his reasons for inclining to 

 the latter opinion. 



Twelve new species are enumerated: — Atretia gnomon, Pecten 

 fragilis, Limagibba, Nucida i-eticulata, JV. expansa, Glo?mis nitens, 

 Malletia cuneata, Kellia symtnetros, Axinus incrassatus, Dentaliuni 

 candidum, Pleiirotoma riibescens, Utriculus sttbstriatus. 



Three new genera are characterized, viz. — 



Atret i a, Jeffreys. 

 A remarkable brachiopod. 'Its nearest ally is Rhyncoftella from 

 which it appears to differ only by a straight instead of an incurved 

 beak.' 



Gi\orr\US, Jeffreys. 

 'Has the aspect of Pectunciilus and the hinge of Leda; but the 

 teeth are not arranged as in either of those genera.' 



Seguenzia, Jeffreys. 



'This genus evidently belongs to the Solariiwi family, but is dis- 

 tinguished by having a broad and deep open furrow (rather than a 

 cleft) in the upper part of the last whorl.' 



The Report should be in the hands of all who are interested in 

 marine invertebrata, as it is full of invaluable and deeply interesting 

 matter. 



Since the publication of the Report, the whole of the new species 

 have been described, and will be noticed in our next issue. 



