Testaceous Pneumonobranchous Mollusca of Great Britain," 515 



P. umbilicata, p. 356. 



P. unidentata. Pfeiffer, i. 58. Taf. ni.fg. 19, 20. ? 



P. Muscorum b. Id. iii. 6l. 



Var. a. 



P. Muscorum. Pfeiffer? 



P. Muscorum a. Id. ? 



Jaminia {Leach?) Muscorum. RissOy Prod, de I'Eur. MSr 

 iv. 88. 



Al^a. 

 A. marginala, p. 357. 



Pupa Muscorum d. Pfeiffer, iii. 61 ? 

 Jaminia marginata. Risso, iv. 88. 



A. nitida, p. 358. 



Animal griseum. Tentacula superiora breviuscula, cla- 



vata; inferiora vix (etiam cum lente) discernenda. 

 Vertigo edentula. Pfeiffer ? 

 Pupa edentula. Mr. Alder, Catal. 

 Jaminia edentula. Russo, iv. 88. 

 North Devon, and Surry. The Alaa revoluta of my Synopsis 

 is an old and bleached specimen, with the aperture placed more 

 extrinsically than usual. 



A. cylindrica, p. 359. 



Animal rufo-nigricans, nitidum. Tentacula superiora 



paululum arcuata. 

 Pupa minutissima. Pf. ? 

 T have added a description of the animal from specimens taken 

 in the South-west of France, where it is not uncommon in situa- 

 tions similar to that of the British specimen before noticed. 



4 bis. suBSTRiATA, Jeffreijs. 



Animal nigricanti-griseum. Tentacula superiora longius- 

 cula, gracilia ; inferiora bulbiformia. Sustentaculum 

 angustius. 



Testa 



