INDEX. 277 



Dactylioceras, Hyatt. Bull. Mus. Comp. Zool., i, 95 230 



Defillippi (Octopus), Verany. Ceph. Medit., 30, t. 11, f. d, f, 1852.. Ill 



Deroceras, Hyatt. Bull. Mus. Comp. Zool., i, 81 228 



Desvigniana (Sepiola), Gervais and Y. Beneden. Bull. Acad. Brux., 



v, 430, 1838. = S. Sepiola, Linn. 

 Dictyoceras, Eichwald. Leth. Ross., i, 1263, t. 48, f. 12. = Ortho- 



ceras 210 



Didymites, Mojsis. Abh. Geol. Reichs., vi 240 



Didynamus (Octopus), Raf. Precis Decouv. SomioL, 28, 1814 126 



Dinoteuthis, More. Zoologist, 4526, 1875. = ? Ommastrephes, d'Orb. 

 Diploceras, Conrad (non Baiter), 1844. = Endoceras. 

 Diploceras, Salter. == Tretoceras. 

 Diptychoceras, Gabl). i al. Calif., ii, 143, 1869. = S. G. of Ptycho- 



ceras, d'Orb 219 



Discites, McCoy. Carb. Foss. Irel. = ?S. G. of Nautilus 216 



Discoceras, Agassiz. Hyatt, Bull. Mus. Comp. Zool.. i, 76 227 



Discoceras, Barrande. 1867 213 



Discosorus, Hall. Pal. N. Y., 1852. = ? Huronia. 

 Discoscaphites. Meek. Hayden's 2d Animal Rept. U. S. Geol. Sur- 

 vey Terr. 297. 1872. = S. G. of Scaphites, Parkinson 221 



Discus, King. Ann. Mag. N. Hist., xiv. 274, 1844. = Nautilus L. 

 Discus. King. Meek and Worthen Proc. Philad. Acad., 469, 1860. 



= Trematodiscus Meek and Wortlien. 

 Dispar (Argonauta) Conrad. Jour. A. N. S., Philad., 2d ser. ii, 



332, 1854. = A. Owenii. Ads. and Reeve 137 



Dispar (Rossia) Riippell (sp.). Giorn. Gab. Messina, xxvi. 1845 162 



Dorensis (Sepioteuthis), Fer. et-. Orb. Ceph. Sepioteu.. t. 3. f. :i. 



1833. = S. Guinensis Quoy and Gaim. 



Dosidicus, Steenstrup. Vidensk. Meddel. Copenh., 120, 1856. ...106, 175 

 Dubia (Loligopsis), Ratbke. Mem. Acad. St. Petersb. ii, 148, t. 1, f. 



16, 17, 1835. = L. guttata, Grant. 

 Dubius (Tremoctopus). Souleyet. Voy. Bonite, ii, 15, t. 1. f. 10-14, 



1852 131 



Dussumieri (Onychoteuthis), Orb. Ceph. Onych., t. 13, 1839 169 



Duvaucelii (Loligo), Fer. et Orb. Ceph. Calmars, t. 14. t. 20, f. 6- 



16,1839 144 



Dux (Architeuthis), Steenstrup. Spolia Atlantica, t. 3, 4, 1857. = 



? A. Titan, Steenstrup 76, 77, 186 



Eblanse (Ommastrephes), Ball. Proc. Roy. Irish Acad., 1939. = O. 



sagittatus Lam. 

 Echioceras. Bayle. Jour, de Conchyl.. 3d ser.. xix, 34, 1879. = 



Ophioceras, Hyatt. 

 Eglais (Philonexis), Orb. Voy. Amer. Merid., 20, t. 1, f. 14, 18, 



1835. = Cranchia scabra, Leach. 



Eledone, Leach. Zool. Misc., iii, 137, 1817 104, 128 



Elegans (Sepia), Blainville. Verany, Ceph. Medit., t. 26, f. a-c. = 



S. Orbignyana, Fer. 

 Elegans (Sepia). Orb. Tabl. Meth. Seiches, t. 8 f. 1-5. 1826. = S. 



rupellaria. Orb. 

 Elegans (Thysanoteuthis), Troschel. Archiv. fur Naturg., i, 74, t. 



4, f. 10, 11, 1857 167 



Ellipsoptera (Loligopsis), Adams and Reeve. Zool. Samarang, 2, t. 



1, f. 1, 1850 163 



Elongata (Sepia), Fer. et Orb. Ceph. Seiches, t. 24, f. 7-10, 1839. . . 195 

 Emmakina (Loligo), Gray. B. M. Cat., 71, 1849 143 



