of British MoIIusca, 137 



Genus 7. Clathurella, Carpenter, 1857 

 { = Defra7icia, Millet, 1826^ but not of Bronn, 1825). 



1. Clathurella linearis (Montagu), = Defrancia linearis, 



Jeffreys. 



Var. intermedia^ F. & H., = CB^MaZz5, Jeffr. 



2. Clathurella reticulata (Renier), = Defrancia reticulata, 



Jeffreys. 



Var. asperrima, F. & H., = var. /ormosa, Jeffr, 



3. Clathurella purpurea (Montagu), = Z)e/ranc2'a purpurea, 



Jeffreys. 



Var. 1. Philherti, ]\lichaud. 



Var. 2. La Vice, Phil., = var. ohlonga, Jeffr. 



4. Clathurella Leufroyi (Michaud). 



Var. carnosula, Jeffr. 



Fam. 2. Cancellariidae. 

 Genus 1. Admete, MoUer. 

 1. Admete viridula (Fabricius). 



Tritonium viridnlum, Fabricius, Faun. Groenl. 1780, p. 402. 



Admete viridula, G. O. Sars, I. c. p. 216, pi. xiii. figs. 1 a, 6, 2; Friele, 



I. c. p. 24, pi. viii. figs. 27-30. 

 Cancellaria viridula, Jefireys, Ann. & -Mag. Nat. Hist. ser. 4, vol. xix. 



p. 322. 



The following locality is within the British area : — 

 ' Porcupine,' 1869, Stat. 65, lat. 61° 10' N., long. 2° 21' W., 

 345 lath, to the N.W. of Shetland. 



Admete viridula has a very extensive northern range. It 

 is found in all parts of Arctic Europe, and on the coasts of 

 Korway and the United States ; in Behring Strait and 

 N. Japan. It was taken, ' Porcupine,' Stat. 1, 1870, in 

 567 lath, on the slope of the English Channel. 



It is found fossil in the Red and Coralline Crag. 



Suborder II. RHACHIGLOSSA. 



Fam. 1. Fasciolariidae. 



Genus 1. Troschelia, Morch, 1876 

 [■=.Boreofusus, G. O. Sars, 1878). 



1. Troschelia herniciensis (King). 



' Triton,' St. 13, lat. 59= 51' N., long. 8° 18' W., 570 fath. 



