85 



rather larger. Operculum spiral, horny, of few whorls. Tentacula 

 lateral. 



1. Scalaria, n. 248. 



1. S. clathrus. Turbo c, Leach, t. 12/. f. 1 ; Planchus, 1. 127. f. 7, 9; 



Kiener, 1. 127. f. 2. 



2. S. pseudoscalaris, PhUippi, 1. 127. f- 8. 



Sect. 3. Iniophthalma. 



Eyes sessile, on the head between or rather behind the base of the 

 tentacula. Operculum spiral or annular. Passing to Bullidse. 



a. Operculum spiral. Eyes near tentacula, 



Fam. 24. C<ecid<z. 



Shell subcylindrical, arched, apex deciduous, subspiral? Oper- 

 culum circular, horny, spiral. Foot short. Tentacula simple. — 

 Clarke. 



1. Caecum, n. 774. 



1. C. imperforatum. Junior C. trachea. Oper. concave externally. 



2. C. glabrum. Oper. convex externally, with spiral terraces. 



Fam. 25. Truncatellid<B. 



Muzzle broadly 2-lobed. Foot very short, roundish. Operculum 

 horny. Walks with its foot and lips. 



1. Truncatella, n. 282. 



1. T. truncatula, Lowe, t. 123. f. 14 ; PhUippi, t. 125. f. 14. 



2. T. httorina, PhUippi, t. 125. f. 6. 



Fam. 26. Pyramidellidce. 



Teeth none or rudimentary. Operculum spiral, few-whorled, 

 with a thin inner edge. 



1. Obeliscus, n. 283=Plotia, sp. Mus. Berl. 1818. 



1. O. maculatus. Pyramidella m., Quoy, t. 123. f. 13. 



2. O. ventricosus. Pyramidella v., Quoy, 1. 123. f. 10 ; Kiener, 1. 123. 



f. 12. Animal of Quoy's figure of O. maculatus placed in this 

 shell ! 



2. Odostomia, n. 286. 



1. O. spiralis, Alder, t. 125. f. 4 ("not correct," Alder). Turbonella 



s., Loven, t. 128 a. f. 3. 



2. O. interrupta. Turbonilla i., Loven, t. 128 a. f. 4. 



3. O. clavula. Turbonilla c, Loom, t. 128 a. f. 2. 



3. Turbonilla, n. 288. 



I. T. albula. Menetho a., Moller MSS. t. 125. f. 2. 



4. Eulima, n. 290. 



1. E. distorta, PhUippi, t. 125. f. 11. 



2. E. polita, PhUippi, t. 125. f. 12. 



