568 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
Cithna tenella, var. costulata Jeff. vi, 184. 
B. range, 2,033 ft. Off Delaware Bay. Eu., Med., Azores. 
Cithna cingulata V. vi, 184, pl. 32, f. 7. 
B. range, 906 to 1,290 f.+; 1,467 f.* 
Cithna (?) olivacea V._ vi, 185, pl. 29, f. 5. 
B. range, 193 to 1,290 f.t 
Fossarus elegans V.and 8. v. 522, pl.57,f.28. Fig. 87. 
B. range, 100 to 142 f.t 
Seguenzia formosa Jeff. vi, 186, pl. 31, f.14-14b. Figs. 88, 88a. 
B. range, 1,290 to 2,033 f. Eu. 
Seguenzia formosa, var. nitida V. vi, 188. 
B. range, 2,033 f. Off Delaware Bay. 
Seguenzia eritima V. vi, 189, pl. 31, f.15. Fig. 89. 
B. range, 1,290 to 2,033 f. 
Cerithiella Whiteavesii V. v, 522, pl. 42, f. 7. 
B. range, 238 to 843 f. N. 
Aporrhais occidentalis Beck. 
B. range, 34 to1,000f.t; 115 to 349f.* N. 
PTENOGLOSSA. 
Scalaria Dalliiana V.and 8S. v, 527, pl. 57, f.33. Fig. 91. 
B. range. 85 f.t; 115 to 193 f.* 
Scalaria Andrewsii V. v, 526, pl. 57, f.35. Fig. 94. 
B. range, 100 f.t; 547 f.* 
Acirsa gracilis V.  v, 528, pl. 57, f. 31. 
B. range, 349 to 843 f.t; 487 to 547 f.* 
Aclis Walleri J. v. 528, pl. 57, f. 36. 
B. range, 349 f.t; 365 to 938 f.* Eu. 
Ianthina fragilis Desh. 
Surface.t S., O. 
RHIPHIDOGLOSSA. 
Rotella cryptospira V. vi, 241. 
B. range, 142 f.t Off Cape Hatteras. 
Ethalia multistriata V. vi, 242. 
B. range, 142 f.t Off Cape Hatteras. 
Leptothyra induta Watson. vi, 197. 
B. range, 142 ft Off Cape Hatteras. 
Oalliostoma occidentale (Mighels). 
B. range, 207 f.t; 365 to 640f.* N., Are., Eu. 
Calliostoma Bairdii V.and S._ v, 530, pl. 57, f. 26. Fig. 96. 
B. range, 56 to 640 f.t; 64 to 192 f.* Ob. 
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