CERITHIOPSIS. 173 



tudinal, somewhat undulating, raised stri?c, suture deeply impressed, 

 base of last whorl radiately striated. Length, 6 mill. 



Port Jackson, Australia. 



Described by Angas under the preoceuiiied name of C. clathrata. 

 C. GRACILIS, SoAvb. PI. 36, figs. 50, 51. 



Very slender, white or brownish, reticulated by prominent, 

 minutely beaded spiral ribs, crossed by longitudinal raised lines ; 

 whorls oblique, ventricose. Length, 18 mill. 



Hub. unknoivn, 



Sowerby's specific name being preoccupied in Cerithium, Bayle 

 changed it to C. amahile. 

 C. suBRETicuLATA, Dunker. PI. 36, fig. 57. 



Shell brownish, whorls 11-12, with three spiral series of granules, 

 of which the middle one is depressed, suture well impressed, base 

 smooth, concave, defined by a thin thread. Length, 6 mill. 



Japan. 



C. BALTEATA, Watsou. PI. 35, fig. 29. 



Whorls with a row of rounded tubercles just below the suture and 

 short longitudinal ribs below them ; yellowish white with a broad 

 brown band. Length, 2 mill. 



Fiji Is. 



Section Metaxia, Monts., 1884, 

 C. METAX.E, Chiaje. PI. 36, figs. 52, 53. 



Whorls narrow, convex, with three spiral series of transverse 

 nodules on the upper and four on tlie lower whorls, the nodules are 

 arranged to show longitudinal ribs; last whorl with carinated 

 periphery, base smooth, flattened or concave ; columella twisted, lip 

 deeply cut out at the base ; color varying from light yellowish 

 brown to ferruginous red. Length, 8 mill. 



Mediterranean. 



The s\Tionyms include C. Crosseana, Tiberi (fig. 53), C. subeyliri- 

 drica, Brusina, and C. rugulosum, Sowb., with its y a.rs. fulva, Jlava 

 and e.tilissima, Mts. 



C. ANGUSTissiMA, Forbcs. PL 36, fig. 55. 



Whorls 16, strongly angulated in the middle, Avith deep suture, 

 earlier whorls smooth, rounded, subsequent ones ribbed, divided by 

 two nodulous spiral ribs above and two below the carina ; yellow- 

 ish, under a corneous epidermis. Length, 9 mill. 



Palermo. 

 C. Benoitianum, Mts., is a synonym. 



