84 Moll. 
MOLLUSCA. 
that Siphonaria is a true Pulmonate, and that the Pulmonata have been 
derived from the Opisthobranchs. Ann. N. H. (5) ix. pp. 341-344, 
pi. xv. 
Addisonia, g. n., slioll porcellaneous, asymmetrical, remarkably resom- 
bling that of Pilidium (Midd. ) = Capulacmcea (Sars); gill, or rather 
series of branchial leaflets, curiously exaggerated, displacing all other 
soft parts to the other side ; dentition peculiar, showing Docoglossal fea- 
tures. A. paradoxa, sp. n., New England, 69-130 fath. Gadinia excen- 
trica (Tiberi) appears to be closely allied to it. Dali, P. U. S. Nat. Mus. 
iv. p. 405, and Ann. N. H. (5) x. pp. 17-19. It is identical with Gadinia 
excentrica , which lives in the Mediterranean : Jeffreys, P. Z. S. 1882, 
p. G73; Am. Nat. xvi. p. 737 ; Verrill, P. U. S. Nat. Mus. v. p. 334, and 
Tr. Conn. Ac. v. p. 533. 
PULMONATA OPERCTTLATA. 
Cyolophorim. 
Cyclotus approximans , stenomphalus , fodiens , spp. nn., and liunanns 
(Gredl.), Heude, Moll. terr. FI. Bleu, pp. 4-6, pi. xii. figs. 1, 9, 10, & 11, 
Middle China. 
Cyclotus tubaformis[tubi-~\, sp. n., Mollendorff, JB. mal. Ges. ix. pp. 179 
& 252, pi. ix. fig. l,Whei-chow, Prov. Kwan-tung, China. C. fortunii (Pfr.) 
= approximans (Heude), C. chincnsis (Pfr.), pi. ix. fig. 2, C. stenomphalus 
(Heude) = campanulatus (Gredl., nec Martens), hainanensis (H. Ad., 
Pterocyclus ), operculum flat, minutus (H. Ad.), operculum with promin- 
ent edges of the whorls, all from Southern China ; Mollendorff, l. c. 
pp. 253-260. 
Pterocyclus lienensis } sp. n — 2 Aanorbulus (Gredler, 1881, nec Sow.), 
Gredler, JB. mal. Ges. ix. p. 43, Lien-chow, China. 
Pterocyclus P gerlachi, sp. n., Mollendorff, l. c. p. 180, Southern China ; 
identical with the preceding, id. 1. c. p. 264. 
Cyclophorus nanhingensis , pallens , ngantinensis, sexf laris, and bifrons , 
spp. nn., Heude, Moll. terr. FI. Bleu, pp. 2-4, pi. xii. figs. 2, 3, 4 6, & 8, 
Middle China. 
Cyclophorus exaltatus (Pfr.), Hongkong, punctatus (Grat.), environs of 
Canton, subcarinatus, sp. n., Whei-chow, Kwan-tung, pyrostoma, sp. n., 
Hainan, elegans, sp. n., marble rocks near Shinghingfu, province of 
Kwan-tung, and clouthianus (Mollend., 1881), province of Kwan-tung, all 
figured ; Mollendorff, l. c. pp. 266-274, pis. ix. figs. 3-7, and x. fig. 1. 
C. nanhingensis and pallens (Heude) are varieties of martensianus (Mol- 
lend.), id. 1. c. p. 276. 
Cyclophorus ( Craspedotropns? ) trichophorus (Mollend., 1881), pellicosta , 
sp. n., Hongkong, Macao, and hung erf or dianus (Mollend.), Kwan-tung, 
China, described and figured ; id. 1. c. pp. 337-343, pi. x. figs. 2-4. 
Cyclophorus ( Leptopomoides ) cuticosta , sp. n., id. 1. c. p. 180, Hongkong 
and Macao [apparently = pellicosta. — Rec.]. 
