of British Mollusca. 63 



Order II. O P I S T H OB Rxi N C H I A T A. 



Suborder I. TECTIBRANCHIATA. 



A. Cephalaspidea. 



Fam. 1. Actaeonidae. 



Genus Action, Montfort. 



27. Actoion tornatilis. 



Var. 1. siibulata, Searles Wood. 

 Var. 2. tenella, Loven. 

 Var. 3. buUceformis, Jeffreys. 



28. Actceo7i exi'Iis, Jeffreys. 



Actceo7i e.rilis, Jeffreys, Ann. & Mag. Nat. Hist. ser. 4, vol. vi. (1870), 



p. 21, and vol. xix. (1877), p. 335. 

 Aunculina inaculpta, Verrill, Proc. U. S. Nat. Mus. vol. iii. (1880), 



p. 381. 

 Act<poyi nitidus, Verrill, Trans. Conn. Acad. vol. v. (1882), p. 540, 



pi. Iviii. tig. 21. 

 Acfcson exilis, Dall, Bull. Mus. Comp. Zool. vol. xviii. (1889), p. 38. 



* Porcupine ' expedition, 1869, in 1215 fathoms, off Ireland 

 to the south-east of Rockall (Stat. 28). 



It has been found also in the North Atlantic in 1450 

 fathoms, * Valorous,' off the Lusitanian coasts, 227-994 

 fathoms, 'Porcupine,' 1870, and in the Mediterranean, 92- 

 1456 fathoms. Off east coast of Florida, 150-200 fathoms, 

 and Gulf of Mexico, 200 fathoms {Dr. Rush) ; off Martha's 

 Vineyard, East America, 312-407 fathoms [Verrill). 



Jeffreys states that it has been found by the late Prof. 

 Seguenza fossil in the older Pliocene of Calabria. 



Fam. 2. Tornatinidge. 



Genus 1. Tornatina, A. Adams, 1850 (= Utriculus, 

 Brown, 1845, non Schumacher, 1817). 



29. To7"natina ohtusa (Montagu). 



Var. Lajonkaireana (Basterot). 



30. Tornatina mammtllata (Philippi). 



31. Tornatina truncatula (Brugui^re). 



Ywc. pellucida (Brown). 



32. Tornatina umbilicata (Montagu). 



Var. strigella (Loven). 



33. Tornatina nitidula (Lovdn). 



