90 



3. G. ? Chiaje, t. 42. f. 2. 



4. G. ?? . Cuvier, t. 42. f. 4. 



5. G. ? Chiaje, t. 42. f. 1. 



6. G. ? ,t. 51. f. 1,2. 



15. Philippia, n. 142. 1. P. lutea. Solarium 1., Philippi, 

 Moll. Sicil. i. 1/4. 



** Operculum ovate, few-whorled. 



16. ARADASiA = ?Otavia, n. 131. Operculum ovate, of few ra- 

 pidly enlarging whorls ; lateral filaments (4 '4) elongate; shell 

 scarcely pearly. — Quoy. 1 . A. canaliculata. Trochus c, Quoy, 

 t. 64. f. 21, 23. 



Fam. 4. Stomatellidce, Syn. B. M. 1842. 



Operculum horny ; whorls many, gradually enlarging ; sometimes 

 wanting. Frontal lobes between the tentacida two, distinct, lobed. 

 Mantle and shell entire ; sides without filaments. Gill single, lateral 

 fringe membranaceous, without tentacula. Teeth, Quoy, t. 66*. f. 19. 



1. Stomatella, n. 143. Operculum horny, circular, many- 



whorled; mantle edge crenated. 



1. S. maculata, Quoy, 1. 109. f. 1, 3. 



2. Gena, n. 145. Operculum none ; shell elongate ear-shaped ; 



mantle edge entire. 



1 . G. lutea. Stomatella auricula, Quoy, t. 109. f. 5. 



2. G. nigra. Stomatella n., Quoy, 1. 109. f. 4. 



Fam. 5. Haliotidce. 



Operculum none ; frontal lobes none ? Mantle with a slit and 

 shell with a series of holes on pillar side. Gills 2, separate on pillar 

 side. 



1. Haliotis, n. 147. 

 1 . II. tuberculata, Cuvier, 1. 109. f. 6, 1. 1 10. f. 5 ; Chiaje, 1. 109. f. 2, 

 2a; JVelb.t.U0.l7. 



b. Sides without membranous fringe or tentacula. Shell not 

 pearly. 



Fam. 6. Neritinida. 



Teeth, central few, with numerous lateral hooks, like the former 

 families. — Loven, t. 6. f. 5. 



a. Operculum horny, with a shelly coat on each side; edge channeled. 



1. Nerita, n. 161. 



1. N. plicata, Quoy, t. 45. f. 6. 



2. N. albicella, Quoy, t. 45. f. 5. 



3. N. exuvia, Cuvier, t. 44. f. 7- 



4. N. . Dunar, Adanson, t. 44. f. 5, 6. 



5. N. ascensionis, Quoy, t. 44. f. 4. 



