Z PULMONATA. 



Pneumonea, Hartmann in Sturm Fauna, vi. 33, 1821. 

 Pulmobiaiichiata, Gray, Ann. PhUos. viii. 107, 1824. 



Blainville, Diet. Sci. Nat. xliv. 98, 1826. 



Deshayes, Ency. Meth. iii. t. , 1830. 



D'Orbigny, Moll. Cuba, i. 139, 1841. 



Reeve, Proc. Zool. Soc. 1841, 76. 

 Pulmonobranchiata, Sow. Man. 1842. 

 Pulmonibranchiata, Agassiz, Index, 1847. 

 Pvdmonea, Latr. Fam. Nat. 1825. 

 Adelobranchia, Risso, Eur. Merid. iv. 54, 1826. 

 Coelopneumonata inoperculata, Menke, Syn. ed. 2 

 Ccelopneumonata gjninostoma, Menke, Sy7i. 7, 1828. 

 Pulmonifera, Guilding, Zool. Journ. ii. 440, 1828. 



Fleming, Brit. Anim. 225, 255, 273, 1828. 

 Pulmonacea, C. Pfeiffer, Naturg. Moll. iii. 1. 6, 1828. 

 Pulmonaria, Griffith in Cuvier A. K. xii. 26, 1834. 

 Colimacea, Reeve, Conch. Syst. ii. 64. 



G. B. Sow. Manual, 1839, ed. 2. 112, 1842. 

 Pneumonica, Verloren, Organ. General. 1836. 

 Pneumobranchia inoperculata, Gray. 

 Pneumoneata, Hartmann, Syst. 1840. 

 Coelopnoa gymnostoma, Menke, Syn. ed. 2. 13, 1830. 



Xi. Pfeiffer. 

 Pneumobranchiata, Gray, Turton's Man. ed. 2. 77, 1840; Syn. 



Brit.Mus. 1840; 1842,90. 

 Pneumobranchia, Lamk. Hist. A. s. V. vi. 292, 1819. 



Gray, Syn. B.M. 1840. 

 Pneumobranchiata, Gray, Proc. Zool. Soc. 1847, 169, in Mrs. 



Gray's Fig. Moll. iv. Ill, 1850. 

 Saccobranchia, Leach, Brit. Moll. 12, 44, 1852. 



Synopsis of Families. 



I. GEOPHILA. Eyes at the apex of an elongated cylindrical 

 peduncle. Tentacles cylindrical, shorter and lower down 

 than the eye-peduncles, sometimes very small or wanting. 

 Operculum none. Terrestrial. 



A. Head, eye-peduncles and tentacles retractile under the skin. 



a. Mantle covering the head. Tentacles in the front of the 



mantle. 



1. jANELLiDiE. Mantle covering the entire back. Tentacles 

 two. 



