EXPLANATION OF PLATES, XVII. 



343 



FIGURE 



50-52. 

 53-55. 

 56, 57. 

 58-60. 

 61, 62. 



Plate 22. 



D. pressum Sh. & P. Pilsbry, del., 

 D. brevicornu P. & S. Pilsbry, del., 

 D. insolitum Smith. From Ann. Mag. 

 D. platyceras P. & S. Pilsbry, del., 

 D. ophiodon Dall. Pilsbry, del., 



Plate 23. 



1, Cadulus quadrischistus Wats. From Chall. Rep., 



2. Siphonodentalium tytthum Wats. From Chall. Rep., 

 3-5. Entalina plataniodes Wats. From Chall. Rep., 



6. Siphonodentalium pusillum Wats. From Chall. Rep., 



7. Cadulus quadridentatus Dall. From Blake Rep., 

 8-21. S. vitreum (= lobatum). From Sars, 



PAGE 



124 



125 

 109 

 126 

 126 



148 

 137 

 133 

 140 

 149 

 136 



Plate 24. 



22. Cadulus gracilis Jeffr. From Chall. Rep., . . 165 



23. Cadulus gracilis Jeffr. From P. Z. S 165 



24. Cadulus gibbus Jeffr. From P. Z. S., , . . . 159 



25. Cadulus amphora Jeffr. From P. Z. S , .... 161 



26. Cadulus cylindratus Jeffr. From P. Z S., . . , 166 



27. 28. Cadulus propinquus Sars. From Sars, . . . 166 



29, 31, 32. Cadulus subfusiformis Sars. From Sars, . . 163 



30, 33-38. Entalina quinquangularis Forbes. From Sars, . 132 

 39. Cadulus jeffreysi Monts. From Brit. Couch., . . . 164 

 40-44. Siphonodentalium lofotense Sars. From Sars, . . 138 

 45-47. Siphonodentalium affine Sars. From Sars, . . . 140 



Plate 25. 



48. Cadulus sequalis Dall. From Blake Rep., 



49. Cadulus acus Dall. From Blake Rep., 



50. Cadulus watsoni Dall. From Blake Rep., 



51. Cadulus vulpidens Wats. From Chall. Rep., 



52. Cadulus amiantus Dall. From Blake Rep., 



53. Cadulus obesus Wats. Fi-om Chall. Rej)., 



54. Cadulus curcurbita Dall. From Blake Rep., 



55. Cadulus lunula Dall. From Blake Rep., 



56. Cadulus sauridens Wats. From Chall. Rep., 



57. Cadulus agassizi Dall. From Blake Rep., 



58. Cadulus ampullaceus Wats. From Chall. Rep 



59. Cadulus congruens Wats. From Chall. Rep., 



60. Cadulus curtus Wats. From Chall. Rep., 



61. Cadulus exiguus Wats. From Chall. Rep., 



62. Cadulus rastridens Wats. From Chall. Rep., 



63. Cadulus pandionis Verr. From Tr. Conn. Acad 



170 

 191 

 167 

 172 

 174 

 159 

 161 

 167 

 173 

 168 

 158 

 175 

 175 

 159 

 174 

 171 



