-NO. 2238. NOMENCLATURE OF THE FAMILY TURUJTIDAE—DALL. 325 



Cryptoconus v. Koenen, 1867. Type, PI. filosa Lamarck. Ueber Conorhis 

 und Crytoconus v. Koenen, 1867, p. 11, fig. 8 (not seen) ; cf. Arch. Naturg., vol. 2, 

 p. 211, 1880. +Megasurcula Casey, 1904. 



Cryptogemma Dall, 1918. Type, Gemmula benthina Dall. 



Cymatosyrinx Dall, 1889, Bull. Mus. Comp. Zool., vol. IS, p. 95. Type, PI. 

 lunata Lea. 



Cythara Schumachek, Essais, p. 245, 1817. Type, C. striata Schumacher— 

 CanccUaria citharetla Lamarck 1822. This includes the .species with short spire, 

 denticulate outer lip and striated pillar, the aperture narrow. Cossmaun states 

 this name was used before Schumacher binomially (Essais, p. 121), but this 

 appears to be erroneous. 



Cytharella Monterosato, Bull. Mai. Ital., 1875, p. 6. Type, Pleurotoma hcr- 

 trandi Payraudeau. Cf. JJitoma Bellardi, 1875. ^Mangilia Cossmaun, not 

 Risso. These are the small species with thickened but not Urate or denticulate 

 outer lip and pillar; the spire usually shorter than the aperture, the surface 

 longitudinally ribbed, smooth, or spirally minutely sculpturetl ; nucleus small, 

 smooth. Not Cytherella Rupert Jones, 1849, Crustacea, from Cythere. 



Cytharopsis A. Adams, 1865, Ann. Mag. Nat. Hist., vol. 15, p. 323. Type, 

 Mangilia cancellata A. Adams. Not Citharopsis Pease, Oct., 1868. 



Daphnella Hinds, Voy. Sulph., Moll., 1844. p. 25. Type. D. limnaeiformis 

 Kiener. 



Daphnellopsis Schepman, Siboga Exp. livr. 64, Mon. 49' e., p. 449, 1913. Type, 

 D. lameUosa Schepman, Siboga Exp. livr. 64, p. 449, 1913. Like Daphnella but 

 with heavily callous lips. 



Daphnobela Cossmann, 1806, Essais, p. 93. Type, BucHiiam jnnceum Sow- 

 erby. Eocene. Shell extremely like Aesopiis. 



Defrancia Millet, see Clathiirella Carpenter. 



Diaugasraa Melvill, Proc. Mai. Soc. London, 1917, p. 141. Type, Daphnella 

 epicharta Melvill and Standeu. 



Biploconus Sandbekger, (Not seen.) Not Diploconus Haeckel (Protista), 

 1860; nor of Candeze (Coleoptera) 1860, nor of Zittel, Cephalopoda, 1868 (not 

 seen). 



Ditoma Bellardi, 1875, Mon. Pleiu*., p. 295. Not Ditoma Illiger, 1807, Coleop- 

 tera. Type, Mangilia angusta Jan. "i+CythareUa Monterosato, q. v.=Agatho- 

 toma Cossmann, Rev. Crit. Pal., 1889, vol. 3, p. 45. Also Essais, vol. 3, p. 192. 



Dolichotoma Bellardi, Mon. terz. Piem., p. 229, 1875. Monotype, PI. cata- 

 phracta Brocchi. Not Dolichotoma Hope, 1839. =^Bathytoma Harris and Bur- 

 rows, 1891, new name (not needed). ^Cryptoconus v. Koenen (1840, fide 

 Zittel). 1867 fide Fischer. +Megasiircula Casey, 1904 ;=Z)o%oioma Wein- 

 kaufe, 1876, Jahrb. Mai. Ges., p. 8. 



Doligotoma Weinkauff, 1876, Jahrb. Mai. Ges., p. 8,= Dolichotoma Bellardi 

 not Hope. 



Donovania Bucquoy, Dautzenbeeg, and Dollfus, 1882, Moll. Roussillon, vol. 1, 

 p. 112. Type, D. minima Monta.gu= brunneum Donovan, 1804. Buccinum mini- 

 mum Montagu, 1803, is preoccupied by B. minimum Turton, 1802, fide Iredale, 

 1915. +Lachesis Risso. 1826, not Daudin, 1804 i+Nesaea Risso, 1826, not La- 

 mai-ck, 1816. 



Drillia Gray, see Clavatula Lamarck and Clavus Montfort. Also Crassispira 

 Swainsoii, and Clavatula Swainson not Lamarck. Drillia Gray, Ann. Nat. Hist., 

 vol. 1, 1838, p. 28. Type. D. umbilicata Gray. Brachytoma Swainson, 1840 

 (eastanea), if. synonymous. Brachitoma {strombiformis Sowerby) is also a 

 Drillia. 



Drilliola (Monterosato, MS.) Cossmann, 1903. Essais, vol. 5, p. 188. Type, 

 D. emendata Monterosato, Medit. Cossmann states that it goes between (his) 



