254 RECORDS OF THE AUSTRALIAN MCSEUM. 



general use of the name in the MitriJiv was unfortunate. In size and 

 contour the shell resembles that of Tnrris, but is broader. The peripheral 

 keel is beaded either in the young stage, as in the geuotj^pe, or throughout 

 life. A superficial resemblance to Gemiiiulu is acquired by the beaded 

 pei'iphery, but the position of the sinus differentiates it from the genera. 

 Eydoux and Soule3'et have shown that the operculum ot Pleurotome nodifsre 

 has a lateral nucleus, thus conveying the genus to the Clavatiditice. Turris 

 conspicna and T. altispirn,'^^ Tasmanian Tertiary fossils, may belong to this 

 genus. 



TcKFnCCLA .lAVANA Li)nie. 



Mitra javaims Linne, Syst. Nat., lii., 1767, p. 1221. Id. Hanley, Ips. Linn. 

 Conch., 1885, p. 2'99. 



Surcnla javann Standeu and Leicester, Ceylon Pearl Oyster Reports, 

 xxxviii., 1906, p. 287. 



Dn'llid (Surcida) javana Shirley, Proc. Roy. Soc. Queensland, xxix., 1917, 

 p. 112 (not P. javana of Gmelin, Reeve, &c.) 



Marex tnrris Gmelin Syst. Nat., xiii., 1791, p. 3543. 



Plenrotoma contoria Perry, Conchology, 1811, pi. xxxii., fig. 1. 



Plevrotoma nodifera Lamarck, An. s. vert., vii., 1822, p. 96. Id. Crouch, 

 Introduc. Lam. Conch., 1827, p. 33, pi. xvii., fig. 4. Id. Kiener, Coq. 

 Viv., Pleurotome, 1840, p. 22, pi. xii., fig. 1. Id. Deshaj^es, An. s. vert., 

 2 ed., ix., 1843, p. 353. Id. Reeve, Conch. Icon., i., 1843, pi. iv., 

 fig. 28. Id. Souleyet, Zool. " Bonite," ii., 1852, p. 620, pi. xliv., 

 figs. 6-7-8. 



I have seen no Australian example of this species. 

 Hah. Queensland: — Thursday Island (Shii'ley). 



TCRRKTLA I.El'IA Watsmi. 



Plenrotoma (Si(rcida) lepta Watson, Jouru. Linn. Soc, xv., 1881, Zool. p. 

 391. Id. Watson, Chall. Rep. Zool., xv., 1886, p. 288, pi. xviii., fig. 7. 



Hah. South-west Australia :— 1,950 fathoms, S. lat. 53.55, E. long. 

 108.35 ("Challenger"). 



Cl.AVl-s Mnitfnrt. 



Clavns Montfort, Conch. Syst., ii., 1810, p. 435. pi. cix., type Claws 

 flammidattis Montiori=^ St ronilns Jiridittf hinne =^ ClavatnJ a echinata 

 Lamarck. Id. Cossman, Essai. Paleoconch, ii., 1896, p. 86. Id. Dall, 

 Proc. U.S. Nat. Mus., liv., 1918, pp. 315, 324. 



Clavirantha Swainson, Treat. Malac, 1840, pp. 155, 314, type selected by 

 Herrmansen, Ind. Gen. Malac, i., 1846, p. 246, PJeurotoma echinata 

 [janiarck. 



Tylotia Melvill, Proc. Malac. Soc, xii , 1917, p. 160, type Stroinlrus canali- 

 cidaris Bo\ten = CI a cat id a anricnlifera Lamarck. 



" May— Proc. Roy. Soc. Tasm., 1921, pp. 11, 12, pi. iv., figs. 7, 8. 



