82 Moll . 
MOLLUSCA. 
VeRMETIDAJ. 
Vermetidae contain the genera Vermetus, Siliquaria , and Oryptobia ; 
Tryon, (1) p. 1G5. 
Vermetus contains subgg. Bivonia , Spiroglyphus , Thylacodes , Siphonium , 
Stephoma, Burtinella , Tubulostium , and Vermicularia ; if/. Z. c. p. 166. F. 
(?) cyclicus, n. sp., North Australia, Watson, p.465, pi. xxxi, fig. 1 (?n. g. 
Ctiloceras ). 
TuRRITELLIDA). 
Turritellidce contain Turritella , Protoma , Glaucoma , and Mathilda ; 
Tryon, (1) p. 193. 
Mathilda elegantissima , Costa, includes Af. cochlceformis , Af. granolirata , 
Af. retusa , Costa, and M. puniculata, Tiberi ; if/. Z. c. p. 210. 
Turritella has as subgg. Mesalia , Arcotia, and Lithotrochus ; if/. Z. c. 
p. 198. T. fascialis, Menke, is from Japan and China Sea; if/. Z. c. p. 197. 
T. goniostoma, Val., numerous synonyms; id. Z. c. p. 198. 
CiECIDjE. 
Ccecidce made to include only the one genus, Caecum , with subgg. 
Meioceras, Strebloceras , TFftZsonia, aud Parastrophia ; Tryon, (1) p. 213. 
16 specimens enumerated from the ‘Challenger’ collection; most new 
species were described in 1879 : Folin, pp. 680-689. 
Caecum angustum , C. eburneum , n. spp., North Australia, id. Z. c. p. 688, 
pi. 1, figs. 8 & 9: intermediate forms noted between C. trachcea , C.pollicare , 
and C. vitreum ; id. Z. c. p. 689. C. glabrum , Mont., includes Dentalium 
minutum, L., Brochus Icevis and B. arcuatus , Brown ; Cornuoules minor , 
Brown, Odontidium levissimum , Cantr., and Vermxculum incurvatum , 
Mont.; Tryon, (1) p. 215. C. orcutti, n. sp., California, Dali iu Orcutt, 
P. U. S. Nat. Mus. viii, p. 541. (7. calif ornicum } n. n., = C. cooperi , 
Smith ; id. iiid. 
Melaniidj:. 
Kobelt (11) continues his index to the family with the genera, Melania , 
Tiphobia , and Bourguignatia. Palmarctic species defined by Wosterlund, 
(2) pp. 102-131. 
Ililacantha , n. n., = Tiphobia , Smith, preocc. ; Ancey (5). 
Melania gottschei , Af. forticosta. M. coreana , Af nodifila , M. globus , 
n. spp., Korea, Martens (2). Af. andersoni } M. mariesi , n. spp., Japan, 
Smith (3). Af subcrenulata, Af. minutissima , A/, kaohaiensis, n. spp., Hue, 
Cochin China, Wattebled, pp. 60-62, pis. iii, figs. 3 & 2, & iv, fig. 6. 
Af. walloriensis , n. sp., New Guinea, Brazier, (2) p. 843. Af. (Melanoides) 
gredleri, n. n. for Af. tumida , Gredl. (dec Tristram) ; Bcettger, (4) p. 10. 
Af. (Sermyla) sculp ta , Soul., includes Af. crebricostis , Nevill (wee Benson) ; 
id. Z. c. p. 12. Af. (? Sulcospira ) schmacheri , n. sp., Hunan, id. Z. c. p. 3. 
