of British MoUusca. 65 



under Cylichna umbilicata, he writes : — " Var. conulus, Loflfo- 

 den I., 300 i\ (Sars), not var. conulus of WeinkaufF, which he 

 has since named C. Iloernesi ; this is C. jvjramidata oi A. 

 Adams." It appears probable from the words ^' Norwegian 

 and Mediterranean'^ in the lirst of these quotations that he 

 there used C. pi/rarntdnta for tlic shell we now understand as 

 Tornatina ovata, Jetfr., whereas in the second he makes 

 C. pyramidata synonymous with the shell I have above 

 spoken of as (7y/«o///ta [Bulla) striatula, Forbes =C. Hocrnesi, 

 Weink.] 



Genus 2. Volvula, Adams. 

 '65. Volvula acuminata (Brugui^re). 



Off Berwick [R. Howse in Newcastle Museum). This is 

 the only instance of its occurrence off the east of England. 



Fam. o. Scaphandridse. 

 Genus 1. Cylichna, Loven. 



36. Cylichna cylindracea (Pennant). 



Var. linearis^ Jeffreys. 



37. Cylichna alba (Brown). 



At the time when ' British Conchology ' was published 

 the only known British locality for this species was north- 

 north-west of Unst, Shetland, where Jeffreys and myself 

 dredged it on several occasions. It has since been found 

 north-north-west from the Butt of Lewis in 189-530 fathoms 

 (' Lightning,' Stats. 12, 13) ; off the west of Ireland in 430- 

 13GG fathoms ('Porcupine,' 1869, Stat. 23a, 19); near the 

 same ground as by the ' Lightning,' in 530 fathoms (' Knight 

 Errant,' Stat. 7). 



Genus 2. DiAPHANA, Brown, 1833 

 =Amphisjjhyra^ Loven, 1846. 



38. Diaphana hyalina (Turton). 



39. Diaphana expansa (Jeffreys) . 



40. Diaphana ventrosa (Jeffreys). 



41. Diaphana (jlobosa (Loven). 



Utriculm ylobosus, Jeffreys, Brit. Couch, vol. v. p. 223, pi. cii. tig. 8. 

 Diaphana ylubusa, G. 0. Bars, /. c. p. 21)0, pi. xviii. tigs. 4 and 3 c. 

 Diaphana hyemalis, G. 0. Sais, l. c. p. 2IJ1, pL xviii. fig. 4. 



Ann. & May. N. Hist. Ser. 6. Vol. vi. 5 



