348 RECORDS OF THE AUSTRALIAN MCSEUM. 



radials on the periphei'al area enclose large meslies ; on the upper whorls 

 are from two to four spirals. Aperture open and toothless ; varix much 

 thicker than the ribs ; sinus very small ; canal short and open. Length 

 6 mm., breadth 2 mm. 



In size and general appearance this is like P. modeata, for which it 

 has been mistaken. ^^-^ l'. uiayand. is a slightly narrower shell, with more 

 numei"ons and much more slender spii-als and radials. Where an inter- 

 stitial thread has not interfered, the basal furrow of mayana is a ready 

 recognition mark. P. modesta does not occur in Tasmania. Compared 

 with P. tiiicta the Tasmanian shell is smaller, slighter, thinner, and more 

 delicately sculptui-ed. 



Hab. Tasmania: — Frederick Henry Bay (May). 



PSEDDODAPHNELLA MODESTA Angm. 



(Plate Iv., fig. 183.) 



ChithureUa modei<ta Angas, Proc. Zool. Soc, 1877, p. 38, pi. v., fig. 16. 

 Id. Sowerb}', Pi'oc. Malac. Soc, ii., 1896, p. 28. Id. Pritchai'd and 

 Gatliff, Proc. Roy. Soc. Vict., xii., 1900, p. 176. Id. Verco, Trans. 

 Roy. Soc. S.A., xxxiii., 1909, p. 310. 



As is frequently the case in this genus, this species has a light and a 

 dark colour dimorphism. A brown specimen in the British Museum, 

 presented by G. F. Angas, is marked there as the type. 



Hob. N. S. Wales: — Port Jackson (type, Brazier); 100 fathoms, off 

 Port Macquarie ; Wreck Bay; Twofold Bay (self). Victoria: — Port 

 Phillip; Western Port (Pritchard and Gatliff). South Austi-alia: — 40 

 fathoms, Beachport ; St. Vincent Gulf; Venus Bay; St. Francis Island 

 (Verco). 



PsEUKODAPHNKLI.A OLIGOINA sj^i. lioV. 



(Plate Iv., fig. 184.) 



Shell of medium size, rathei' thin, lanceolate, turreted, with sloping 

 shoulder, perpendicular })eiipliery, and excavate base. Colour uniform pale 

 buff. Whorls seven, including a two-"whorled protoconch. Sculpture: — 

 Radials discontinuous from whorl to whorl, feeble and oblique on the 

 shoulder, prominent and perpendicular on the peripheral area, and 

 traversing the basal excavation, widel}^ spaced, ten on the last "whorl ; 

 spii^als slighter than the radials ; on the fascicle area of the last w'horl 

 are thiee faint and narrow (hieads; from the shoulder to the basal angle 

 are five cords, which over-ride the ribs and thus enclose a. series of oblong 

 and nearl}^ uniform meshes; on the snout are six crowded and progressively 

 diminishing beaded spiials; the upper whorls cany four spirals; within 

 the meshes are fine ladial stiia> ; the basal furrow is spaced as if a spiial 



lo' Tate and May— Proc. Linn. Soc. N.S.W., xxvi., 1901, p. 370. 



