174 HYDROCENA §. 3. 4. 



Operc. corneum. — Long. 7, diam. 4\o mill. Apert. 4 mill. 

 longa. (Mus. Cuming.) 



Hijdroccna lirata Morelct in Rev. et Mag. Zool. 1862. p. 479. 

 — — Crosse ^' Fisch. in Journ. Coneh. XI. p. 371. 



Habitat Bien-Hoa Cochinchinae (Morelet). 



Obs. Hydrocena Hlex^ Fruslrillwn, Rfnvcsinna. snrrita et Pyxis 

 Bens., antea huc relalae , ex investigatione animalium genus Gconssain 

 formant, ad calcem Helicinaceorum tractatum. 



§. 4. 

 1059. 24. H. barbata Ciould. f 



„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 expanso; umbilico modico, profundo. — Diam. '/s 

 poll." (G.) 



Cyclostomu burhalum Gould in Proc. Bost. Soc VI. Febr. 1859. p. 425 ; 



Otia conch. p. 104. 

 Jnponia Ijurbata Gould Otia conch. p. 251. 

 Habitat Ousima. 



Obs. Lirae cluae in anfractu ultimo et singula in prioribus reliquis 

 distinctiores sunt. 



1060. 25. H. cUliaB'ella Goultl. 



„T. parva, subglobosa, tenuis, rufa, laminis incrementi 

 tenuibus ornata, ad peripheriam prope aperturam bianguhita, 

 satis umbilicata. Apertura circularis, peristomate simphci an- 

 fractum proximum tantum attingente. — Operc. subrotundum, 

 paucespiratum, margine attenuato. — Diam. ^/g poU." (G.) 

 Cyvlostoma citliarella 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 cwm Helice harpa Say cox\hm&i]^oiQsi. 



1061. 26. 



,,T. ovato-conica, cornea, ra(hatim i'iifo-strigata , subtus 

 ad poripheriam rufo-tesselhita , modice umbilicata, striis vol- 



