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Show 1893.] ON NEW SPECIES OF PLEUROTOMID^. 487 13. STOLC, A.-"Monografie Ceskych Tubificidu." Abh. bohm. Ges. 1888. 14. ROSA, D.-" Viaggio di Leonardo Fea in Birmania e regioni vicine. XXV. Moniligastridi, Geoscolecidi ed Eudrilidi." Ann. Mus. Civ. Genova, (2 a) ix. p. 368. 15. ROSA, D.-"Kynotus michaelsenii, n. sp. (Contributo alia Morfologia dei Geoscolicidi)." Boll. Mus. Torino, vol. vii. No. 119. 2. Descriptions of Fifteen new Species of Shells of the Family Pleurotomidce. By G. B. S O W E R B Y , F.L.S. [Eeceived April 28, 1893.] (Plate XXXVIII.) PLEUROTOMA WALCOTT, n. sp. (Plate XXXVIII. figs. 7, 8.) Testa turrita, breviuscula, rugosa, pallida, antice zona pallide purpurea cincta; spira turrita, acuta, gradata, sutura incon-spicua; anfractus 8, ubique spiraliter striati, supra medium angulati, infra angulum convexi, longitudinaliter costati (costis in anfr. ult. circ. 12), spiraliter lirati (liris in anfr. penult. anfractus ultimus spiram subcequans, infra angulum leviter convexus, basin versus subcontracts, vix rostratus; apertura latiuscula, fauce purpureo-grisea; cctnali brevissimo, leviter recurvo; columella rectiuscula; labrum acutum, crenulatum, superne sinu prof undo laliusculo emarginatum. Long. 20, maj. diam. 10 millim. Hab. Spencer's Gulf, South Australia. The shell is of the typical form of the section Brillia. The purple-grey zone on the lower part of the body-whorl seems characteristic. The type specimen, belonging to the South Australian Museum, has been kindly lent m e for description and figuring by W . T. Bednall, Esq. PLEUROTOMA HUBERTI, n. sp. (Plate XXXVIII. figs. 11, 12.) Testa turrita, acuminata, rugosa, fusca, albo-costata, zona cdbida cincta; spira elata, acuta; sutura vix impressa; anfractus 10, convexi, obtusissime angulati, ubique spiraliter striati, longitudinaliter costati (costis in anfr. ult. circ. 12), infra angulum spiraliter lirati; anfractus ultimus spirampaulo brevior, zona cdbida cinctus, infra medium contractus, breviter rostratus; apertura latiuscula ; canali breviusculo, leviter recurvo ; labrum incrassatum, superne angulatum, ad angulum late et sub-profunde sinuatum. Long. 16, maj. diam. 8 millim. Hab. Cape Grenville, N.E. Australia. Of the typical form of the section Brillia, the sinus forming a 33* |
