PN£UMOD£BMIDi£. 39 



1. PNEUMODERMON. 



Gills in a four-lobed leaf at the extremity of the body. 



Pneumodermon (Pneumoderme), Cuvier, Ann. Mus. 1804, iv. 228; 



Reg. Anim. ii. 38, 1817, ed. 2, 1830 ; LamTc. Phil. Zool. 1809; 



Hist. A. S. V. vi. 293, 1819, ed. 2, vii. 439 ; Rang, Man. 118. 

 Pneumoderma, Peron et Lesueur, Ann. du Mus. 1810 ; Gray, Land. 



Med. Rep. 1821 ; Blainville, Diet. Sci. Nat. xxxii. 274, 1824 ; 



Malae. 483; Rajfin. Anal. Nat. 1815. 

 Pneumonoderma, Agassiz. 



Pneumodermum, Verany, Cat. A. Invert. 17, 1846. 

 Pneumodermis, Oken, Lehrh. Nat. 

 Pneumonodermum, Herrmannsen, Ind. 309. 

 .3Egle, Oken, Lehr. ZnoL 1816 (see Blainv. Malac. 55). 

 Eglaea, " Oken" in Deshayes, Ency. Meth. ii. 7 (misprint). 



1. Pneumodebmon cucullatum. 

 Body oblong. 



Pneumoderma Capuchonne, Peron et Lesueur, Ann. Mus. 1810, xv. 



65. 

 Pneumoderme, Pneumodermon, Cuvier, Ann. Mus. iv. 228, t. 59 ; 



Anat. Moll. ; Regn. Anim. ii. 330 ; Blainv. Malac. t. 46, f. 4 ; 



Desk. E. M. iii. 802. 

 Pneumodermede de Peron, DOrh. Voy. Amer. Merid. 129 ; Voy. 



Bonite Moll. t. 14, f. 7, 16. 

 Pneumoderma Peronii, Lamk. Hist. ed. 2, vii. 441 ; Quoy et Gaim. 



Voy. Astrol. t. 28, f. 1—6 ? 



Hab. Atlantic Ocean. 



2. Pneumodermon rubrum. 



Body pupaform, elongated, fuscous ; head red ; wings very small, 

 somewhat rounded. 



Pneumodermon ruber, Quoy ^ Gaim. Voy. Astrol. ii. 389, t..20, f. 

 19, 20; Desk, in Lamk. Hist. ed. 2, 441. 



Hab. Amboina. 



E 2 



