430 PKOCEEDINGS OF THE ACADEMY OF [PaRT II 



Plate XIX. — Fig. 1. — Conus haytensis Sowb. Length 107 mm. 



Fig. 2. — Conus recognitus Guppy. Length 69 mm. 



Fig. 3. — Conns bonaczyi Gabb. Type. Length 2L5 mm. 



Fig. 4. — Conus longitudinalis Pils. & Johns. Type. Length 3.5 mm. 



Fig. 5. — Conus haytensis politispira n. subsp. Type. Length 65 mm. 



Fig. 6. — Conus trisculptus Pils. & Johns. T3rpe. Length 343^ mm. 



Fig. 7. — Conus domingensis Sowb. Length 89 mm. 



Plate XX. — Fig. 1. — Conus furvoides Gobh. Type. Length 44.5 mm. 

 Fig. 2, 2a, 2b, Conus symmetricus Sowb. Lengths 25, 27.5 and 49 mm. 

 Fig. 3. — Conus furvoides brachys Fils. & Johns. Type. Length 37.5 mm. 

 Fig. 4. — -Conus aratus Gabb. Type. Length 63 mm. 

 Fig. 5. — Conus perlepidus Pils. & Johns. Type. Length 44 mm. 

 Fig. 6. — Conus planiliratus Sowb. Length 32 mm. 

 Fig. 7, 7a, 7b,. — Conus consobrinus Qowh. Length 27, 30 and 50 mm. 

 Fig. 8.— Conus consobrinus ullim.us Pils. & Johns. Tyjie. Length 52 mm. 

 Fig. 9. — Conus planiliratus Sowb. var. Length 42 mm. 

 Fig. 10. — Conus cercadensis Maury. (porceUus Pils. & Johns. Type). 



Length 29 mm. 

 Fig. 11, 11a. — Conus xenicus Pils. & Johns. Type and paratype. Lengths 



28.5 and 27 mm. 



Plate XXI. — Fig. 1. — Conus slenostoma Sowb. Length 75 mm. 

 Fig. 2. — Conus strombiformis Gabb. Type. Length 63 mm. 

 Fig. 3. — Co7nis simplicissimus Pils. & Johns. Type. Length 63 mm. 

 Fig. 4. — Conus proteus humerosus n. subsp. Type. Length 65 mm. 

 Fig. 5. — Conus simplicissimus n. subsp. Length 68 mm. 

 Fig. 6. — Conus yaquensis Gabb. Type. Length 49 mm. 

 Fig. 7. — Conus pernodosus Pils. & Johns. Type. Length 23 mm. 

 Fig. 8, 9. — Conus gabbi Pils. & Johns. Paratype and tj^e. Lengths 33 



and 42.5 mm. 

 Fig. 10. — Conus larvatus Pils. & Johns. Type. Length 33 mm. 



Plate XXII. — -Figs. 1, 2.^Terebra hitia Piln. & Johns., with detail of penult whorl. 

 Figs. 3, 4. — Co7ius caienatus Sowb. Lengths 65 and 28 mm. 

 Figs. 5, 6. — Terebra baculiformis Pils. & Johns., with detail of penult whorl. 

 Fig. 7. — Cancellaria guppyi Gabb. Type. 



Figs. 8, 9. — Cancellaria ellipsis Pils. & Johns. Type and paratype. 

 Figs. 10, 14. — Phos costatus Gabb. Type and paratype. Lengths 31 and 



30.5 mm. 

 Fig. 11. — Cancellaria insularis Pils. & Johns. Type. 

 Fig. 12. — Cancellaria gabbiana Pils. & Johns. Type. 

 Fig. 13. — Cancellaria epistomifera Guppy. Length 37 mm. 

 Fig. 14. — Phos costatus Gabb. 



Fig. 15. — Nassaria brevis Gabb. Type. Length 20 mm. 

 Fig. 16, 17, 18. — Phos guppyi Gabb. Type and paratypes. Lengths 31.5, 



28, 33.5 mm. 

 Figs. 19, 20. — -Metula cancellata Gabb. Type. Length 24.5 mm. 

 Figs. 21, 22. — Surcida jacquensis (Gabb). Type and paratype. Lengths 45 



and 67.3 mm. 

 Figs. 23, 24, 25. Phos semicostatus Gabb. Lengths 33.5, and 34. mm. 



Fig. 23 is the type. 



Plate XXIII. — Fig. 1. — Oliva proavia Pils. & Johns. Type. 



Figs. 2, 3. — Oliva cylindrica Sowb. Lengths 35 and 31 mm. 



Fig. 4. — Oliva brevispira Gabb. Type. 



Fig. 5. — Olivella canaliculata Gahh. Type. i=muticoides vav.). 



Fig. 6. — Olivella muticoides Gabb, intermediate form. Length 17. 3 mm. 



Fig. 7. — Olivella muticoides Gabb. Type. 



Fig. 8. — Oliva diinidiata Pils. & Johns. Type. 



Fig. 9. — Aurinia striata Gabb. Type. 



