48 Moll. 
MOLLUSCA. 
CALYPTRJ:iDiS. 
Crepidula aculeata (Chemn.) observed in the Marquesas Islands, with 
a note on its very wide geographical distribution ; Garrett, Q. J. Conch. 
1878, No. 15, p. 335, & No. 17, p. 416. 
SOLAEIIDiK. 
Solarium trisulcatum^ sp. n., Jousseaume, Bull. Soc. Z. Pr. i. [1876] 
p. 270, pi. xii. figs. 14 & 15, New Caledonia. 
Torinia perspectiviuncula (Chemn.), var. from Andaman Islands ; E. A. 
Smith, P. Z. S. 1878, p. 816, pi. 1. fig. 17. 
[^] Omalaxis supra-nitida (Wood, as Adeorhis) ; Sara, Moll. arct. 
Norveg. p. 214, pi. xxii. fig. 20, Lofoden Islands, 200 fathoms. 
Trachysma (Jeffreys, MS.), g. n. Shell globular, nearly smooth, 
resembling Cyclostrema in shape, but much thinner, aperture wide, peris- 
tome not continuous, outer margin thin, simple. T. delicatam (Philippi, 
as Cyclostoma), Lofoden Islands, 200-300 fathoms. Sars, Moll. arct. 
Norveg. pp. 211 & 212, pi. xxii. figs. 17 & 18. 
SCALAHIID.®. 
Scalaria grcenlandica (Chemn.), with var. loveni and crebricostata, and 
S. ohtusicostata (Wood) ; Sars, Moll. arct. Norveg. pp. 194 & 195, pi. x. 
figs. 15 & 16, pi. xxii. fig. 9, & pi. xxiii. fig. 1. S. varicosa (Wood) [nee 
Lam.] found alive at Molde, Norway, 100-150 fathoms, id. 1. c. p. 348, 
pi. xxxiii. fig. 9 ; radula of the first and three other European species, 
pi. vii. figs. 9-12 ; operculum of the first, pi. xviii. fig. 30. 
‘ Scalaria communis, var. n. ? yoZ 2 /^, coast of Algeria; Monterosato, J« 
de Conch, xxvi. pp. 315 & 316. 
Scalaria striatissima, sp. n., S. celesti (Aradas, 1853) = soluta (Tiberi, 
1868) = frondosa (Monterosato, nee Sow.), Palermo ; id. I. c. p. 151. 
Scalaria symphylla, sp. n,, Martens, SB. nat. Fr. 1878, p. 25, Kerguelen 
Island, 120 fathoms. 
Acirsa subdecussata (Cantraine, as Scalaria) = Turritella pTiilippii 
(Aradas) = Mesalia striata (A. Adams), Palermo : living animal de- 
scribed by Monterosato, J. de Conch, xxvi. p. 151. 
Adis exigua, sp. n., and walleri (Jeffr.), Lofoden Islands ; Sars, Moll, 
arct. Norveg. p. 196, pi. xxii. fig. 8, & pi. xi. fig. 18. Radula with 
numerous simple very minute booklets ; that of A. supra-nitida (Wood) 
figured, pi. vii. fig. 10 ; operculum, pi. xviii. fig. 33. The author estab- 
lishes for it a new family, Aclidoi, to be placed in the Ptenoglossa. 
Hemiaclis, g. n. Distinct from Adis by the broader conical shape and 
less numerous whorls of the shell, and very thin hair-like booklets of the 
radula. H. ventrosa (Jeffr., MS.) and glabra, spp. nn., Lofoden Islands; 
id. 1. c. pp. 197 & 198, pi. xi. figs. 14-16 ; radula of the first, pi. vii. fig. 11 ; 
operculum, pi. xviii. fig. 34. 
