166 
ADAMSIELLA §. 4. LITHIDION. 
§. 4. 
11. xanthostoma (Cyclostoma) Sow. (Coll. 8.) I. 174. II. 109. 
III. 120. — Patel Cat. p. 121. — Cyclostoma tenuistriatum C. B. 
Adams. — Choanopoma xanthostoma Gray. — Jamaica. 
12. pinguis (Cyclostoma) Pfr. I. 175. II. 109. III. 120. — Patel 
Cat. p. 121. — Habitat? 
13. ignilabris (Cyclostoma) C. B. Adams. (Coll. 9.) I. 175. II. 
109. III. 120. — Gloyne in Journ. Conch. XX. p. 39. — Patel 
Cat. p. 121. — Jamaica. 
14. cblorostoma (Cyclostoma) Sow. (Coll. 10.) I. 176. II. 109. III. 
120. — Cyclostoma sericeum Fer. — Choanopoma cfilorostoma Gray. 
— Demerara. 
15. Osberti Tristram, f III. 120. — Guatemala. 
16. cinnamomea (Cyclostoma) Pfr. (Coll. 11.) II. 109. III. 120. — 
Habitat? 
17. chordata (Cyclostoma) Pfr. (Coll. 12.) III. 120. — Patel Cat. 
p. 121. — Cuba. 
Snbfam. VI. Cyclostomea. 
Pfr. Mon. Pnenm. II. p. 109; III. p. 121. 
XL. Lithidion Gray. 
Pfr. Mon. Pneum. I. p. 176; II. p. 109; III. p. 121. — 
Patel Catal. 1873. p. 17. 122. 
Species : 
1. sulcatum (Cyclostoma) Gray. I. 176. II. 110. III. 121. — Cyclo- 
stoma lithidion Sow. — - Cyclostomus sulcatus Ad. — Yemen Arabiae. 
2. desciscens (Cyclostoma) Pfr. I. 177. II. 110. III. 121. — Patel 
Cat. p. 122. — Cyclostomus desciscens Ad. — Socotora. 
3. Souley etianum (Cyclostoma) Petit. (Coll. 1.) I. 177. II. 110. 
III. 121. — Cyclostoma par adoxum Pfr. — Cyclostomus Souley etianus 
Ad. — ■ Abd-el-Goury prope Socotoram. 
4. depressum (Cyclostoma) Sow. I. 178. II. 110. III. 121. — Cy- 
clostomus depressus Ad. — Habitat? 
5. niveum (Cyclostoma) Petit. (Coll. 2.) I. 178. II. 110. III. 121. 
— Cyclostomus niveus Ad. — Madagascar. 
