64 Moll. 
MOLLUSCA. 
sion between them ; radula near that of Macrochlamys ; no dart-sac. A. 
p aliens ? (Morelet, as Eelicarion ), from Abyssinia. Godwin- Austen, l. c. 
pp. 154-156, pi. xlii. 
Eelicarion helence , sp. n., Sydney, belonging to the typical section of 
this genus, anatomically described by Godwin-Austen, l. c. p. 146, pi. xli. 
Both right and left dorsal lobes very ample ; foot not sharply keeled ; 
no dart-sac. 
Eelicarion prcecellens, sp. n., and nucleatus (Stoliczka) ; Martens, Con- 
chol. Mitth. ii. p. 132, pi xxv. figs. 1-7, Salanga Island. 
Helixarion [Eelicarion] raffrayi , sp. n., Bourguignat, Mai. Abyss, 
p. 9, pi. vii. figs. 12-14, Mount Zebul, Abyssinia. 
Stenopus P Eelix cornorensis (Morelet). Animal described ; Morelet, 
J. de Conch, xxxi. p. 205, pi. viii. fig. 12. 
Durgella (Blanf.). Gonorical description, dentition near that of Sitala. 
D. levicula (Bens.), typo, minuta (Godw.-Aust., 1876, as Eelicarion ) and 
khasiaca, sp. n., West Khasi Hills, the two latter anatomically described ; 
Godwin-Austen. 1. c. pp. 142-145, pi. xxxix. 
Microcystis schmackeriana , sculpta, and glaberrima , spp. nn., Southern 
China, with notes on other Chinese species which may belong to this 
genus, e.g., rejecta (Pfr.) = mamillaris (Heude); v. Mollendorff, JB. mal. 
Ges. x. pp. 363-366, pi. xii. figs. 7 & 8 ; the new species also in Nachr. 
mal. Ges. 1883, pp. 99 & 100. 
Nanina ( Microcystis ) orbiculum [-ws] and bruijni , spp. nn., Southern 
New Guinea, Tapparone-Canefri, Ann. Mus. Genov, xix. pp. 204-206, 
pi. v. figs. 13-18 ; anatomical sketches of the former, pi. vii. fig. 7. 
Nanina citrina (L.), genital organs, aulica (Pfr.), varieties, campylonota, 
sp. n., Kei Islands, near New Guinea, and doricc (Tapp.-Can., 1880), 
Western part of New Guinea ; id. 1. c. pp. 196-202, pis. v. figs. 8, 10, & 
11, & viii. fig. 2. 
Nanina salangana , sp. n., Martens, Concliol. Mitth. ii. pp. 134 & 135, 
pi. xxv. figs. 8-12, Salauga Island. 
Nanina egbertce , sp. n., id. JB. mal. Ges. x. p. 81, Tabari, S.E. New 
Guinea. 
Nanina ribbei , sp. n., Dohrn, JB. mal. Ges. x. p. 344, Maros, Celebes. 
Nanina ( Xesta ) sibylla, sp. n., Tapparone-Canefri, Ann. Mus. Genov, 
xx. p. 172, pi. i. figs. 2 & 3, genital organs fig. 9, Kandari, Island of 
Celebes. 
Nanina eastlakeana, sp. n., Mollendorff, Nachr. mal. Ges. 1883, p. 101, 
and JB. mal. Ges. x. p. 372, pi. xii. fig. 2, Prov. Fuchen, China. 
Macrochlamys (Bens., 1832). Godwin-Austen discusses the somewhat 
complex literary history of this genus, the typical species being the same 
as that of Nanina (Gray, 1834), and treats of the following Indian 
species : — 
1. Globosely conoid, of small size, sculpture smooth : M. longicauda* 
Cherra Pongee, N. Khasi and N. Cachar Hills, nengloensis * Naga 
Hills, koliaensisy Assam, roberti } Naga Hills, dorani , N. Khasi, 
tanirensis , Tanir Peak, 4400 feet, Dafla Hills, rusticula , N. Khasi, 
all spp. nn., planiuscula (Hutt.), darjilingensis (Nevill, MS.), and 
molecula (Bens.). 
