PLATE XIX. 



Fig. 1. Rissoa precipitata Dall ; 4.0. Page 279. 



2. Margindla seminula Dall ; 7.0. Page 139. 



3. Marginella WatsoniY)Q\\] 9.5. Page 137. 



4. Marginella fusina Dall ; 8.0. Page 138. 



5. Marginella yucatecana Dall ; 5.62. Page 138. 



6. Marginella S2cccinea CoT\Ta.(\. ; 12.0. Page 139. 



7. Marginella torticula Dall ; 11.5. Page 141. 



8. Columhella {Astyris?) Verrillii Dall ; 9.0. Page 192. 

 9 a. Pedicularia decussata Gould, profile ; 6.0. Page 237. 

 9 b. Pedicularia decussata, young, showing spiral apex ; 2.5. Page 238. 



10. Rissoa xanthias Watson var. acuticostata Dall ; 3.7. Page 280. 

 10 b. Eucosinia brevis Orbigny ; 2.0. Page 351. 

 10 c. Columhella (Anachis) amphissella Dall ; 4.0. Page 188. 



10 d. Dalium solidum Dall ; 41.0. Page 230. 



11. Eulima (Melanella) arcuata C. B. Adams ; 4.0. Page 328. 

 lib. Leiostraca fusus Dall ; 13.5. Page 329. 



11 c. Eulimella unifasciata Forbes ; 6.0. Page 338. 



