REPORT ON THE GASTEROPODA. 633 



13. Actceon (Acteonina) cliariis, Watson (PI. XLVIL fig. 7). 



Actceon (?) chariis, "Watson, Prelim. Report, pt. .18 Journ. Linn. Soc. Lond., vol. xvii. p. 288. 



Station 78. July 10, 1873. Lat, 37° 26' K, long. 25° 13' W. OIF San Miguel, 

 Azores. 1000 fathoms. Volcanic mud. 



Shell. — Small, ovate, thin, translucent white, with flatly rounded whorls, a short sub- 

 scalar very bluntly tipped spire, a largish roundish mouth, sinuated outer lip, and edentu- 

 lous pillar. Sculpture : Longitudinals — there are numerous, unequal, sinuous hair-like, 

 obsolete lines of growth. Spirals — the whole surface is scored with flattish rounded 

 threads and shallow furrows of half their breadth between ; these become feeble in the 

 middle of the whorls ; the furrows are not stippled. Colour translucent white and glossy. 

 Spire conical, scarcely scalar. Apex extremely blunt, being suddenly truncated and 

 flattened ; the extreme tip is very slightly inverted. Wliorls 4^, constricted above, flatly 

 rounded in the middle, and very faintly constricted below ; the last is a very little tumid, 

 with a rounded and slightly produced base. Suture strong, slightly oblique, impressed 

 and slightly channelled. Mouth roundly pear-shaped, very bluntly pointed above. Outer 

 lip : there is a strong shallowish and wide sinus above ; below this the lip-edge (straight 

 in its direction) is prominent, with a very slight emargination on the patulous and rounded 

 base-line. Inner lip : an excessively thin and narrow glaze crosses the body, which is 

 scarcely convex ; the line of junction with the pillar and out to the point of the shell is 

 roundly concave : the lip-edge on the pillar is narrow and sharp, and there is behind it a 

 small furrow. H. # 1 in. B. - 05. Penultimate whorl, height 0*02, Mouth, height 0-05, 

 breadth 0"03. 



This species is very slightly like Actceon exilis, Jeffr., still more Actceon lovctensis, Seguenza, but 

 is obviously different from both. 



2. Aplustrum, Schumacher, 1817. 



Aplustrum scabrwm (Chemnitz). 



Bulla scabra, Chemnitz, Conch. Cab., vol. x. p. 118, pi. cxlvi. figs. 1352, 1353. 

 ,, Dillwyn, Catalogue, vol. i p. 484, sp. 28. 

 „ Wood, Ind. Test., p. 93, pi. xviii. fig. 28. 

 ,, Lamarck (ed. Desh.), vol. vii. p. 677, sp. 21. 

 „ Sowerhy, Thes. Conch., vol. ii. pt. 2, p. 563, sp. 1, pi. cxx. fig. 1. 

 Bullina scabra, Reeve, Conch. Icon., vol. xviii., single pL, sp. 1. 



Bulla lauta, Pease, New Moll. Sandwich Islands, Proc. Zool. Soc. Lond., 1860, p. 19, No. 2. 

 Bullina lineata, Angas, Port Jackson Moll, Proc. Zool. Soc. Lond., 1867, p. 225, No. 254. 

 ,, „ Hutton, Manual, p. 120. 



„ scabra, v. Martens, Moll. Mauritius, &c, p. 303. 

 „ ,, Dunker, Index Moll. Mar. Japou., p. 163. 



(zool. chall. exp. — part xlii. — 1886.) Tt 80 



