A KKVISION OK THE AC8TKALIAN TIKKIDA: HEDLKY. 261 



ail Oniscia. The ci^loar markings and the H[)iral grooves on the anterior 

 part of the shell of Cliemnitz favoar the reference of Cythara to Strmuhus 

 ratlier than, as by Sniith,^^ to Mnmjelia lijiu Reeve, or M. funic aluta Keeve. 

 Even if it be granted that Schumacher's (Jytluira is really a Tarrid, it is 

 a species unknown to modern conchology, and the genus has no substantial 

 basis. Trj'^on-^^ has stated tliat Otoclieilui^ is "C'/////'f/'<," in which case it 

 wouhl take precedence of the name here eniplo3'ed, but Dall ^ regards it 

 as absolutely s\'nonymous with Lyrin. The genus Conoplfuru Hinds 

 (type C. striata Hinds, 1844), is probably a deepwater representative of 

 Encithara. 



The genus Encithara seems to be a constant associate of reef corals 

 Typical!}' it is a rather solid tuirited-fusifoirn shell, sculptured by bold 

 longitudinal ribs, over-run by dense spiral threads, and decussated by an 

 even finer radial striation. The aperture is as long, or longer, than the 

 spire, fortified externally by a stout varix which ascends the pievious 

 whorl, includes a semi-ciicular sinus, and extends a free edge over the 

 mouth. Witliin the lip are a series of short entering ridyes, and the 

 columella beai-s a corresponding series of deeply entering horizontal bais. 



Corrections here offered of the " Chevert " records are as follows : — 

 Mangelia ponclerosa of Brazier (not Reeve) is here regarded as E. guntheri 

 Sowerby ; his M. goodalli is E. cyliiidrica \ his halteata is coronata; his 

 inaculata is alacris ; and his pessidata is celehensis. 



ECCITHARA ABYSSICOLA Reeve. 



Mangelia abyssicola Reeve, Conch. Icon., iii., 1846, pi. v., fig. 30. Id. Proc. 

 Zool. Soc, 1846, p. 62. 



Cythara abyssicola Brazier, Proc. Linn. Soc. N.S.W., i., 1876, p. 160. 



Mangelia vittata Reeve, Conch. Icon., iii., 1846, pi. vii., figr. 53, pi. viii., 

 fig. 65. 



Cythara vittata Brazier, Proc. Linn. Soc. X.S.W., i., 1876, p. 161. 



Mangilia (Cythara) vittata Odhner, Kung. Sv. Vet. Akademiens Hand- 

 lingar, Hi., 16, 1917, p. 58, pi. ii., fig. 62 (not Mangelia vittata Hinds, 

 Zool. " Sulphur," 1844, p. 26, pi. ix., fig. 3 ; n'or M. vittata Reeve, 

 Conch. Icon., iii., [il. ii., fig. 14=3/. obesa Reeve). 



Plenrotoma (Cithara) biclathrata Souverbie, Journ. de Conch., xx.. 1872, 

 p. 363, and xxi., 1873, p. 59, pi. iv., fig. 4. Id. Bouge and Dautzenbeig, 

 Journ. de Conch., ixi., 1914, p. 157. 



Pleurotorna (GlyphostornaJ exquir'ita Smith, Ann. Mag. Nat. Hist. (5). x. 

 1882, p. 305. 



Ra-phitoma exqnisita Boettger, Nachr. Mai. Cfeseli., xxvii., 1895, p. 63. 



»8 Smith— Joum. Linn. Soc. Zool., xii., 1876, p. 538. 



" Tryon— Man. Conch., vi., 1884, p. 362. 



«" Dall— Trans. Wagn. Inst., iii., 1890, p. 85. 



