QUEENSLAND MOLLUSCAN NOTES, No. 1. 
291 
referred to the same species and should be used. Pilsbry had demurred as lie said 
the figure was a poor one, bat overlooked the excellent description which defied 
any criticism. At tin? same time I drew attention to Marten’s Semiricinula 
introduced for the murieina group, and I proposed Muricodrupa naming fenes- 
trata as type. Neither of these was noted by Dali and he included fenestrata 
in his new group Morulina , and apparently would regard murieina as a member 
of Morula. As rnuiica may represent a different group from that of fenestrata , 
Morulina may be preserved. Dali’s Morulina ceylonica “resembling M. nodus 
on a minute scale” recalls ozenneana, which would be better classed in Morula 
with nodus ( =uva), the type of the latter group. 
Many years ago Cooke (Cambridge Natural History, vol. iii, p. 222, 
fig. 124) figures the curious radula of spectrum Reeve, and when he dealt with 
the radulae of this group (Proc, Mai. Soe. (Loud.), xiii, p. 106, 1919) he allowed 
the species in Morula without comment. Thiele (Wissen. Deutsche Tief — See 
Expd. “Valdivia,” Bd. 17, heft 2, teil 2, p. 137 (171), figs. 3, 4, text, 1925), 
finding a similar radula in siderea Reeve, has proposed for these the new genus 
Drupella. Hedlev regarded spectrum Reeve as the same as data Blainville and 
determined both as mancmella Linne, under which name in the genus Drupa it 
appears in the Queensland list. Cooke recorded a normal radula of Morula under 
the name data Blainville, which indicates confusion. 
Coralliophila dorbignyana Petit. 
Trichotropis dorhignyonum Petit, Journ. de Conch., ii, p. 261, pi. 7, f. 2, Nov. 15, 1851: Pacific 
Ocean. 
Purpura orbignyana Petit, ib. v, p. 37, July 1856. 
Purpura triclwtropoides Souverbie, lb. ix, p. 284, July 1861: ex Montrouzier M.S. : New 
Caledonia. 
This beautiful and distinct species was found at Michaelmas Cay, and it is 
amusing to read Tryon’s conclusions: “is the latter form not yet adult,” the 
latter form being P. gibbosa Reeve, which was classed as “a form with the 
scabrous revolving striae well developed” of C. n c pit o idea Lam. = violacea 
Kienor. I should say that gibbosa ■ was quite unlike Petit ’s shell, and the latter is 
nothing like violacea ,, which was also collected. Ileclley has included Reeve’s 
squamulosa in preference to violacea , but the specimens seem to agree better with 
the latter. 
Family OBELISCID/E. 
Under 1 PyramideUa Dudley ranged a series of shells very easily divisible 
into two major groups. The genus name Ob discus was introduced in 1797 by 
Humphrey (Mus. Calonn., p. 24) for Linne Vi Trochus dotabratus . Two years 
later Lamarck introduced PyramideUa for the same species, so that it cannot be 
preserved iii any sense. A. Adams utilised the two for the different series now 
under notice, but Fischer (Man. Conch., 787, 1885) emended this, proposing 
Ot opleura with auris-cati ( ’hem. alone. Iledley’s series can then be allotted 
thus: — Ot opleura to cover auris-cati, gracilis , and milralis ; and ObeUscus for the 
rest — acus concinnus , pulchellus , terebelloides , tessellafus , and turritus. 
Many specimens were collected at Michaelmas Cay and it was found that 
many species were represented, so that seven may now be added : nitida , variegala , 
