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QUEENSLAND MOLLUSCAN NOTUS, No. 
well-known Spindle Shell. The small species hitherto classed under Ovula and Radius 
have to be separated and grouped according to their facies and relationship. 1 had 
drawn up a scheme before I saw Schilder's classification, which is even more 
revolutionary than my own. Schilder separates the subfamily Amphiperatinse 
into two tribes (“ supergenera” would be a better name) and, under the European 
genus Simnia, proposes a subgenus, Prosimnia, with type semperi Weinkauff, a group 
of small elongate species including dentata Adams & Reeve from Australia. As 
Adams and Reeve’s choice had been anticipated the new name Prosimnia renovata is 
proposed. Reeve’s Ovulum angasi is placed by Schilder under Radius, but seems 
more closely allied to Prosimnia and may be there placed at present. This species 
was described from Port Curtis and has been collected there by most workers since. 
Messrs. Melbourne Ward and W. Boardman recently brought back a nice series 
taken from coral dredged in 9-12 fathoms, and these were immediately divided into 
two distinct species, the smaller one being the true angasi. The larger one is here 
described as Phenacovolva nectar ea nov., and is common as dead shells on the beach 
at Caloundra, and is apparently the species recorded by Shirley under the name 
Ovulum birostris Lam., and included by Hedley in the New South Wales List under 
the name philippinarum Sow. Schilder uses birostris Linn, for the former species, 
though Hanley had indicated an error in the traditional usage, and Schumacher s 
Radius brevirostris (Essai nouv. Test, 1817, p. 259) may be the valid name for the 
birostris of authorities. It may be remarked that Schumacher’s Radius appears 
to have been independently proposed. 
The small Ovuloid shells Schilder classes under Thiele's genus Primovula, 
introduced for a South African species beckeri Sowerby, and introduces a subgenus 
Pseudosimnia, naming carnea Poir., a European fossil, as type. As there are two or 
three distinct groups confused in Australian waters I introduce the new generic names 
Prionovolva and Diminovula for the Australian shells known as breve Sowerby and 
punctata Duclos respectively. As Sowerby described his shell from unknown locality 
and he had East Australian shells, it may be that his species, which has been continually 
credited to Australia, really belongs here. Our shell shows an excellent generic feature 
in the curious saw-teeth in the middle of the outer lip ; the strong cutting inside, 
the twisted posterior canal, the strong columella plait, and the callus towards the 
posterior canal on the body-whorl all distinguish this form from the punctata series 
with its strong sculpture ; its globose form with less twisted posterior canal and obsolete 
plication indicate its alliance therewith, but this is negatived by the weak crenulation 
of the outer lip and lack of body callus : the Australian shell known as punctata 
has coarser striation and larger dots placed farther apart, and may be called 
Diminovula verepuHMata. 
Phenacovolva nectarea gen. & sp. nov- 
(Plate IX, fig. 6.) 
Belonging to the “ birostris ” series but of different proportions. Shell 
elongate, swollen medially, extremities prolonged, mouth linear. Colour pink, 
extremities brownish, a narrow white band round the middle. Sculpture consisting 
of fine strise showing in the adult on the ends only but covering the immature. 
