PRESTWICH CKAG-BEDS OF STTPFOLK AND NORFOLK. 495 



In consequence also of Mr. Bell's papers in the ' Annals,' and of Mr. 

 Jeffreys having lately had an opportunity of examining the MoUusca 

 procured by deep-sea dredging in the Swedish expedition of 1869 

 on the Josephine Bank and oflf the Azores, I am enabled to add a few 

 more species and localities to the list of the CoralHne-CragMollusca, 

 as well as the zones of depth and geographical distribution for some 

 species hitherto considered extinct. Two or three errata in that list 

 will also be noticed. 



CONCHIFEEA. 



Cardita scalaris ; 0. borealis, Conrad : C ; Am. 



Kellia amhigua is not Erycina pvsilla of Philippi, but Scintilla pari- 

 siensis of Conti (not Deshayes) ; the first of these names must 

 therefore stand. In the column of "Geographical distribution" 

 add "At." 



Lima ovata (L. nivea, Brocchi) occurred in the Swedish expedition 

 at a depth of 790 fathoms. 



L. jilicatula (L. squamosa, Lamarck), add Gedgrave. 



Montacuta trinicata is a variety of ilf. hidentata ; but the shell figured 

 by Mr. S. Wood as M. hidentata is a distinct species, which Mr. 

 Jeffreys dredged in the last ' Porcupine' expedition, and proposes 

 to name ili. ovata. 



Pandora ina?quivalvis, Yar. pinna, add Gedgrave. 



Thracia inflata is probably T. Conradi of Couthouy (a North- 

 American species), and not T. corhuh'ides. 



Gastropoda. 



Adeorhis pidchralis : Swedish expedition, 320-600 fathoms. Mar- 

 garita trochoidea of S. Wood is the same species. 

 Gancellaria scalardides (C. varicosa, Brc), add Gedgrave. 

 Cassidaria bicatenata (C. tyrrhena, Ch., var. ?), add Sutton. 

 Cerithium adversum {Trif oris perversa, L.) : 'Porcupine' expedition, 



364 fathoms. 

 64. Clavatida pJicifera ; %Pleurotoma elegans, MoUer: C-D; BSA; 



S. Also Eed Crag. 

 J. fConopleura Maravignce, Bivona ; %PJeurotoma incrassata, Du- 



jardin: C-D ; MW; G. 

 Emargimda elongata, add Gedgrave. 

 Fossarus sulcatus =F. costatus, Brc. S. Wood figured two different 



forms as F. sulcatus and var. lineolatus ; the latter appears to be 



F. japonicus of A. Adams. 

 Odostomia plicata, Montagu. This species must also be added from 



Gedgrave and Sutton. It inhabits the laminarian zone on the 



coasts of Great Britain, Denmark, Prance, Italy, and Algeria ; 



and it occurs in a fossil state at Monte Mario and in the Red 



Crag. 

 Pleurotoma gracilior, A. Bell : Sicilian Pliocene ; Gedgrave. See list 



of Mr. BeU's new species. 



