64 PULMONATA. 



Pra-marelle (Pannacellus), Cav. Ann. Mus. v. (1804) 435; Mem. 

 Moll. n. xii. ; Reg. Anim. ii. 403. ed. 2. 

 Pkilippi, Handh. Conch. 240. 

 Parmiicella (§ B), Bluinv. Man. Malac. 463. 

 Parniacella, Gray, Proc. Zool. Soc. 1847, 170. n. 441. 

 Montfort, Conch. Syst. 



Ferussac distinctly says, " Point de pore muqueux terminal," 

 which induced me to place this genus in Limacina ( Proc. Zool. 

 Soc. 1847, 1/0) ; but he refers to PeZ^eWa and not to Parmacella 

 Olivier i. 



1. Parmacellus Olivieri. 



Parmacella Olivieri (Parniacelle d'Olivier), Cimer, Ann. Mus. 



V. 435. t. 29. f. 12, 15; Me7n. Moll. xii. t. ; cop. Lamk. E. 



M. 463.t. 3 a, &. 



Blainv. Man. Malac. 4fi3. t. 41. f. 3. 

 Parmacellus Olivieri, Feniss. Tab. Syst. 25. 96 e ; Hist. Moll. 



ii. 79. t. 7- f- 2, 5. 

 Parmacella Mesopotamise, Oken, Lehrb. Naturg. 307. t. 9. f. — 



(from Cuvier). 

 Hub. Mesopotamia. 



It appears that Olivier only found a single specimen, which 

 was described and dissected by Cuvier. Ferussac says tliat neither 

 the shell nor the animal is now to be found in the Paris Museum 

 [Hist. Moll, ii.), so that the species must remain in doubt until 

 specimens are brought from ]\Iosoi)otanna. 



In the figure the hinder i)art of the foot is large and high, 

 which sejiarates it from the following ; the figure also shows a 

 distinct spiral tip to the body. 



M. Morelet is inclined to regard the Testacella ambif/ua of 

 Sovverby as the shell of Parmacella Olivieri; but this shell 

 shows no indication of the spiral a])ex to the body v.hich is re- 

 presented in Cuvier's figures. (See Moll. Port. 42 ; Journ. 

 Conch, iii.) 



2. Parmacellus gracilis. B.M. 

 Foot slender behind, upper part keeled. Shell large, ear- 

 shaped, convex. Spire very obscure (injured) (ver>' thin), white, 

 rather ]iearly and striated" within, covered with a thick, hard, 

 olive, polished periostraca produced beyond the edge of the thin, 

 white, calcareous part. 



" Parmacella Olivieri," French collection purchased in London. 

 Hub. V 



