GASTROPODA (PECriNIBRANCHIA). 
Moll 41 
NATiClDiE. 
Natica heros (Say) bores round holes in Mactra solidissima (Chemn.) 
in order to feed upon it ; Leidy, P. Ac. Philad. 1878, p. 332. 
Natica clausa (Brod. & Sow.), forma typica and elatior (Middend.) 
and N. affinis (Gmel.) distinct from the preceding ; Sars, Moll. arct. 
Norveg. pp. 159 & 160, pi. xii. fig. 1 ; pi. xxi. figs. 12-14, radula, pi. v. 
figs. 15 & 16, operculum of the former, pi. xviii. fig. 12. 
Natica grisea and sculpta^ spp. nn.. Martens, SB. nat. Fr. 1878, p. 24, 
Kerguelen Island. 
Natica. A sinistral undetermined species subfossil from iNovaya Zem- 
lya ; Leche, Sv. Ak. Handl. xvi. (2) p. 50. 
Natica suhcostata, sp. n , Tenison-Woods, P. Linn. Soc. N. S. W. ii. 
p. 263, Port Jackson Heads, 45 fath. 
Lunatia grcenlandica (Beck) and nana (Moller), Sars, Moll. arct. Norveg. 
pp. 158 & 159, pi. xxi. figs. 15 & 16 ; radula, pi. v. figs. 13 & 14 ; oper- 
culum of L. intermedia (Phil.), pi. xviii. fig. 11. 
Lunatia australis, sp. n., Hutton, J. de Conch, xxvi. p. 23, New Zea-^ 
land. 
Neverita {Lunatia) parvula, sp. n., Tapparone-Canefri, Ann. Mus. 
Genov, viii. [1876] p. 325, Geelvink Bay, New Guinea. 
Mamma zoologica, sp. n., Jousseaume, Bull. Soc. Z. Fr. i. [1876] p. 272, 
pi. xii. fig. 16, locality unknown. 
Ampullina smithi (Brown) = Natica flava (Gould) = N. aperta^ 
(Lov4n) ; Sars, Moll. arct. Norveg. p. 155, pi. xii. fig. 2, pi. xxi. fig. 18, 
living animal very voluminous, without eyes, p. 346 ; radula, pi. v. fig.- 9, 
operculum, pi. xviii. fig. 9. 
Natica {Amauropsis) perscalpta, sp. n., Martens, SB. nat. Fr. 1878, 
p. 25, Kerguelen Island, 120 fath. 
Amaurella glahrata and semistriata (A. Adams) are, by a remarkable 
mistake, figured by Sowerby in the continuation of Reeve's Conch. Icon, 
pts. 340 & 341 in the genus Sty lifer, figs. 18 & 20, but what Sowerby calls 
S. (^Amaurella) japonica (H. Adams), fig. 9, is no Amaurella, but a true 
Sty lifer. 
Ualiotinella patinaria (Guppy, 1876). The author persists in thinking 
this is not the internal shell of Pleurohranchus, but a distinct genus pro- 
bably belonging to the Naticidce ; J. de Conch, xxvi. pp. 321 & 322, 
pi. X. fig. 1, West Indies. \^Cf. Zool. Rec. xiii. Moll. p. 13.] 
VELUriNIDiE. 
Velutina lanigera (Moller), Sars, Moll. arct. Norveg. p. 146, pi. xii. fig. 3 ; 
radula of V. Icevigata (Penn.), pi. v. fig. 3. 
Morvillia undata (Brown) = Velutina zonata (Gould), with var. n. 
expansa', id. 1. c. p. 147, pi. xxi. figs. 6 & 7; radula of the first, pi. v. fig. 4. 
Velutella flexilis (Mont.) =plicatilis (Lov., Jeffreys, nec 0. F. Muller), 
and cryptospira (Middend.) ; id. I c. pp. 148 & 149, pi. xxi. figs. 8 & 9 ; 
radula of the first, pi. v. fig. 5. 
. Allerya = Scutulum, see Pulmonata thalassophila. 
1878. [voL. XV.] 
B 12 
