40 List of the Japanese Species of Fenella. 



long and narrow, truncate in front, with parallel sides, pointed 

 behind, and entirely of a white colour. It swims at the surface 

 of the water, shell downwards, with great facility, and, in 

 crawling, uses the muzzle to assist the foot. 



The nearest allied genus to Fenella is Alvania of Risso, which 

 comprises some small Rissoid shells with cancellated whorls and 

 a marginal varix to the outer lip. The genei'a Bittium, Leach, 

 and Cerithiopsis, Forbes & Hanley, also resemble Fenella in the 

 turreted form of the shell ; but in both those groups the aper- 

 ture is emarginate in front. The genus is dedicated to one of 

 Sir Walter Scott's heroines [vide 'Peveril of the Peak'). 



Genus Fenella, A. Adams. 



An. capita proboscidiformi. Rostrum elongatum, cylindricum, 

 annulatum. Tentacula filiformia, distantia. Oculi sessiles, parvi, in 

 areolis albidis ad lateribus capitis, pone basin tentaculorum, positi. 

 Pes elongatus, angustus, anticQ truncatus, postice acuminatus. 

 Operculum corneum, subspirale. 



Testa turrita, subulata seu pupoidea, imperforata ; anfractibus 

 decussatis seu cancellatis. Apertura ovali, antice Integra ; peritre- 

 mate interrupto ; labro simplici, acute, non reflexo, incrassato aut 

 varicoso. 



1. Fenella pupoides, A. Ad. 

 Ann. & Mag. Nat. Hist. 1860. 



Hab. Takano-Sima : Tsu-Sima : Yobuko : Seto-Uchi. 



2. Fenella asperulata, A. Ad. 

 Dunkeria asperulata, A. Ad., Annals, 1860. 



Hab. Mino-Sima : Gotto Islands ; 48 fathoms. 



3. Fenella pulchella, A. Ad. 

 Dunkeria pulchella, A. Ad., Annals, 1860. 



i/"aJ. Mino-Sima; 63 fathoms : Gotto; 48 fathoms. 



4. Fenella fusca, A. Ad. 

 Dunkeria fusca, A. Ad., Annals, 1860. 

 Hab. Sea of Okhotsk : Rifunsiri : Mososeki. 



5. Fenella ferruginea, A. Ad. 

 Dunkeria ferruffinea, A. Ad., Annals, 1860. 

 Hab. Sado, 48 fathoms. 



6. Fenella scabra, A. Ad. 

 Dunkeria scabra, Annals, 1860. 

 Hab. Kino-0-Sima: Bingo-Nada: Tsu-Sima. 



