174 
HYDROCENA §. 3. 4. 
1059. 
1060. 
1061 . 
Operc. corneum^ — Long. 7, diam. 4^2 Apert. 4 mill, 
longa. (Mus. Cuming.) 
Hydrocena llrnia Morelct in Rev. et Mag. Zool. 1862. p.* 479. 
— — Crosse ^ Fisch. in Journ. Conch. XI. p. 371. 
Habitat Bien-Hoa Cochinchinae (Morelet). 
Obs. Hydrocena Hlex^ Frustrilliim, Rawesiana, snrrita et Pyxis 
Bens.^ antea hue relatae, ex investigatione animalium genus Gconssarn 
formanC calcem Helicinaceorum tractatum. 
§. 4. 
24. If. licirlsata Govild. *2* 
„T. parva, ovato-conica, rufo-cornea, liris numerosis vol- 
ventibus et striis incrementi tenuibus lamellosis decussata, 
decussationibus barbam gerentibus; anfr. 5 rotundatis, sutura 
canaliculata. Apertura postice subangulata; peristomate sim- 
plici, vix expanse; umbilico modico, profundo. — Diam. 
poll.“ (G.) 
Cyclostoma harbalum Gould in Proc. Dost. Soc VI. Febr. 1859. p. 425 ; 
Otia conch, p. 104. 
Japonia barhata Gould Otia conch, p. 251. 
Habitat Ousima. 
Obs. Lirae cluae in anfractu ultimo et singula in prioribus reliquis 
distinctiores sunt. 
25. M. eiiSiarella Ooultl. 
„T parva, subglobosa, tenuis, rufa, larainis incrementi 
tenuibus ornata, ad peripheriam prope aperturam biangulata, 
satis umbilicata. Apertura circularis, peristomate simplici an- 
fractum proximum tantum attingente. — Operc. subrotundum, 
paucespiratum, margine attenuate. — Diam. Vs (Gr.) 
Cyclostoma citharella Gould in Proc. Bost. Soc. VI. Febr. 1859. p. 425; 
Otia conch, p. 104. 
Japonia citharella Gould Otia conch, p. 251. 
Habitat Ousima. 
Obs, Praeter operculum species cum //e/zcc confundi potest. 
26. H- sii6B@iYa €^oifild. f 
„T. ovato-conica, cornea, radiatim rufo-strigata , subtus 
ad peripheriam rufo-tessellata , raodice umbilicata, striis vol- 
