CERITHIUM. 129 



C. caudatum, Sowb. (figs. 69, 70), is a synonym ; Morch makes of it 

 a var. tennis. I think that the unfigured C. Floridanum, Morch, 

 may also be referred here. 



C. EBURNEUM, Brug. PL 22, figs, 61, 71-75, 77-80. 



Shell granose or tuberculated, one row of tubercles stronger, 

 forming an angle on the middle of the spire whorls ; between the 

 tubercles are spiral fine striae, finely spotted with chestnut or choco- 

 late ; sometimes the whole shell is pure white ; there are generally 

 occasional varices ; interior of aperture marked like the exterior. 



Length, 1 in. 



Florida, West Indies. 



The synonyms are C. semiferrugineum of Morch (Yoldi Cat.) 

 = var. solida, Morch, C. umbonatum, Sowb. (fig. 62), C. Novce- 

 Hibernice, A. Ad. (figs. 73, 74), said, notwithstanding its name, to 

 come from Florida, C. fenestratum, Sowb. (fig, 75), C. graciliforme, 

 Sowb. (fig. 77), C. pulicarium, Phil. (fig. 77a), C. striatissimnm, Sowb. 

 (figs. 78, 79), and f C. planispiratum, Sowb. (fig. 80). 



C. ALGICOLA, C. B. Adams. PL 22, figs. 82, 81. 



Closely, longitudinally plicate, crossed by spiral striae, forming 

 small tubercles, whorls concavely shouldered ; white, variegated with 

 fulvous. Length, 20 mill. 



West Indies. 



I am not acquainted with this species. Morch refers to it doubt- 

 fully, C. punctulatum, GmeL, C. litteratum, var. parva, of Kiener, 

 and he adds vars. vittata and tennis. C. lentiginosum, Sowb. (fig. 

 81), appears to be very like this species ; it is described without 

 locality. 

 C. MUNITUM, Sowb. PL 23, figs. 82-84. 



Whorls flattened, varicose, with rude longitudinal plaits, crossed 

 by spiral costulations, two spiral rows on the middle of the body 

 whorl, strongly tuberculated ; yellowish white, stained and lined 

 with light chestnut. Length, 1 in. 



Philippines, Viti Islands- 



Reeve's locality " Mediterranean " and his reference to Philippi as 

 authority are erroneous. With this species I unite as a synonym Q. 

 pyramidatum, Hombr. et Jacq. (fig. 84), a name preoccupied by 

 Deshayes for a fossil species, and changed to C. proditum by Bayle,, 

 and which the latter author, having previously used this specific 

 name in the same paper to designate another species, finally changed 

 to C. Audouini. 

 9 



