HYDROCENA §. 4. 5. 1(J5 



38. H. Kraniim Pfr. 



T. vix perforata, conico-ovata, solidula, sublaevifrata, sor- 

 dide fulva vel albido et fulvido zonata; spira conoidea, apice 

 obtusula; anfr. 5 perconvexi, ultimus spira vix brevior, circa 

 perforationeni punctiforniem distincte carinatus; apertura sub- 

 obliqua, ovalis; perist. simplex^ rectum , margine columellari 

 recedente, suboatulo. — Long. 5, diam. 3 mill. Ap. 2V3 

 mill. longa, I2/3 lata. (Coll. iSr. 347.) 



Jlydroccna yranutn (Omphalotropls) Pfr. in Proc. Zool. Soc. 1854, 



p. 308. n. 31. 

 — — — //. et A. Adains Gen. rec. Moll. II. 



p. 300. 



Habitat .,Isle of Pines" Oceani Australici (Macgillivray). 



39. II. cerea Pfr. 



T. vix perforata, ovato-conica , solidula, laevigata, vix 

 nitidula, cerea ; spira convexo-conica , acutiuscula; anfr. 51/2 

 vix convexiusculi, ultimus ^ 3 longitudinis paulo superans, ro- 

 tundatus, perforationem punctifbrmem carina callosa , obtusa 

 cingens; apertura jDarum obliqu!i, angulato-ovalis ; perist. sim- 

 plex, rectum, margine columellari brevissime fornicato-patente. 

 — Long. 41/2, diam. 2% mill. Ap. vix 2 mill. longa, IV2 

 lata. (Mus. Cuming ) 



Fftjdrorcna ccrca (Omphalotropis) Pfr in Proc. Zool. Soc. 1857. p. 112. 

 Habitat in ins. Norfolk. 



§. 5. 



40. H. IVavigatoriim Pfr. 



T. anguste perforata, ovato-turrita, solidula, fusca, costis 

 subdistantibus, albis, undulatis munita; spira elongato-conica, 

 acutiuscula; anfr. 6 convexi, prope suturam filocarinati, ulti- 

 mus 2/j longitudinis subaequans, supra carinam impressus, 

 circa perforationem carina compressa munitus; apertura vix 

 obliqua, subelliptica ; perist. simplex, rectum , margine colu- 

 mellari vix patulo. — Long. 6 '/3, diam. 32/3 mill. Ap. 23/^ 

 mill. longa, I-/3 lata. (Mus. Cuming.) 



Hydrocena Naviya/o}'um (Omphiilotropis) Pfr. in Proc. Zool. Soc. 1857. 

 p. 113. 



Habitat in insulis Navioratorum. 



