50 MOLLlSr-A OF KI.NU ISI.ANP. 



stronger sculpture, which persists on the base. Better i)re- 

 served examples may prove the King Island shell to Ivj a 

 variant of the New Zealand species. 



Brookvla cousobrina, Sp. nov. 



Shell minute, globosely turbinate, perforate, solid, dirty- 

 white, rather corroded. Whorls four, first one and a half 

 unsculptured and scarcely raised above the succeeding 

 whorls, which are crossed by strong axial ribs widely 

 separated and laminate, about 30 on the first turn of the body 

 whorl, the interstices crossed with fine regular lir» which 

 are scarcely discernible on most specimens Aperture almost 

 round continuous, outer edge finely notched by the revolving 

 lirae. Umbilicus medium sized and deep. 



Diameter, 1.5; height, 1.3; PI. VII., fig. 4. 



Type with 18 others from 40 fathoms off" Thou in Bay, 

 Tasmania. 



This species is a very typical Brookula, and siarcjly 

 diff"ers from the type of the genus D. stibarochila, Iredale, 

 from the Kermadecs. Pro. Mai. Soc. X., pt. iii., 1912. p. 220. 

 Our shell appears rather higher and has a smaller mouth. 

 It is al.so very close to />. de)!sila}iiiii(ttum, Verco, which shell 

 has a more elevated pullus, and ribs about twice as numerous, 

 Intermediate forms may yet be found. 



LIST OF KING LSLANl) MOLLUSC.V. 



Pronvo'ln vikinis, Angas. 

 lAssarva rhovit'oidnlis, Verco. 

 Arcn mctclla, Hedley. 

 Ghfcifmciia fUtbcllatiix, Ten. -Woods. 

 *PhH(>btyn fnnln'iata, Tate. 

 Philobrya sub purpurea, May 

 Notomyiilus ruber, Hedley. 

 Ontren Spe? 



Ncotrigovia inarynritacvn , Lamk. 

 Pectcn mcdius, Lamk. 

 Chlamys aspcrrimvH, Lamk. 

 Lima strangei, Sowerby. 

 BrachyndontiH roxtratvs, Diinkcr. 

 Modiolus avHtralis, Gray. 

 Myochnmn nvoviioidcfi, Stutchl)ury. 

 Vrvcrirardia nviabiliH, Deshayes. 

 Venericnrdin vruUiUi, Smith. 



