14 PAXILLUS. 



V.? Paxilliis H. et A. Adams. 



De genere, cujus loctis systematicus deficiente animalis 

 et operculi (?) cognitione adhuc dubius remanet, conferatur 

 Pfr. Mon. Helic. III. p. 585 et A. Adams in Proc. Zool. 

 Soc. 1852. p. 93, ubi Helicidis adnumeratur, ut etiam in 

 Woodrv. Man. II. p. 166. In recentissimo opere Cl. fratres 

 E. et A. /Idams (Gen. rec. MoU. II. p. 288) Paxillum tam- 

 quam subgenus Diplommatinae injunxerunt. — Species hucus- 

 que unica : 



1. ndversiis H et A- Ad. (Coll. 32. — Pfr. 

 in Malak. Bl. 1855. p. 185. — Diplommatina 

 adversa [Paxillus] Jd. Gen. p. 286.) . . . Helic. III. p. 586. 



Subordo II. Ectophthalma. 



Pfr. Mon. Pneum. p. 14. — Gray Cat. Phan. p, 3. — 

 ff. et A. Adams Gen. rec. Moll. II. p. 273 : subordo Oper- 

 culatorum. 



Faiuilia I. Cyclostoiiiacea. 



Pfr. Mon. Pneum. p. 14; Philippi Handb. d. Conch. 

 p. 257 exclusis generibus pluribus. — Cyclophoridae Gray 

 Fig. Moll. Anim. IV. p. 120 et Cat. Phan. p. 3; H. et A. 

 Adams Gen. rec. MoU. II. p. 273. 



Subfam. I. Cyclotea. 



Operculum crassum, e duabus laminis compositum (exte- 

 riore plerumque calcarea, interiore cornea, ambabus sulco mar- 

 ginali separatis), orbiculare, arctispirum, nucleo centrali. 

 Cyclotina Gray Cat. Phan. p. 6. 



Cyclotinac H. et J. Adams Gen. rec. Moll. II. p. 274. 

 Cyclotacca Trosch. Gebiss d. Schnecken p. 66. (inclusis Cyclophoreis 

 et Pupineis). 



I. Cyclotus Guilding. 



Pfr. Mon. Pneum. p. 16; Gray Phan. p. 6; Woodw, 

 Man. p. 177 (subgenus Cyclophori); H. et A. Adams Gen. 



