286 MEMOIES OF TEE QUEENSLAND MUSEUM. 
an arduous task to dig out of synonymy the correct name for the species observed. 
Thus members of different families are lumped under Mitra, as was shown long 
ago by Troschel and more recently confirmed by Cooke from study of the radulce, 
and it is a nerve-wracking prospect to disentangle the species. I found local 
variation as well as individual and probably sexual, yet nevertheless specific 
values seem easy to establish. The generic groups are somewhat more difficult, 
as probably many more names are necessary, but here I simply attempt to locate 
the species found at Michaelmas Cay, as these amounted to some twenty-five 
species. 
The genus name Mitra was long used for the red-spotted Mitres as dating 
from Lamarck, but it was first validly introduced by Martyn (Univ. Conch., 
vol. i, pi. 19, 1784), and the species t esse (lata is taken as type, a different form 
from the conventional Mitra which must now be called M it r aria Rafmesque 
(Anal. Nat., p. 262, 1815: cf. 1 redale. Pro. Mai. Soc. (Loud.) ix, p. 262, 1911). 
This name was overlooked by Dali (U.S. Nat. Mus. Buil. 90, p. 60, 1915) when he 
introduced Papal-aria for the same group. 
Callit hea Swainson (Treat. Malae., pp. 130-320, 1840) was anticipated by 
Boisduval (Mag. do Zool., v, pi. 122, 1835), and the stigmataria group is easily 
recognised, so for this I propose Vulcliritiina gen. now The small sand-living 
Mitres grouped under ** exasperaia-torulosa” form a little compact series for 
which I propose the name Aremmitra , naming arenosa, Lamarck as type. The 
species generally lumped ! found to be distinct entities in life, so have to add 
four to our list. The common species Mitra scutulata “Lamarck” must be called 
Strigatella discolor Bolten (Mus. Bolten, ji, 137, 1798, for Chemn. 10, t. 151, 
f. 1428, 1429), as there is a prior .1/. scutulata Martyn (Lniv. Conch., iv, f. 129, 
1786-7) earlier than Gmelin’s V. scutulata (Syst. Nat., pt. vi, p. 3452, 1791). 
In the same way the species known as Mitra digitalis Chemnitz or Dillwyn 
must bear the name Chtysame imperial is Bolten (Mus. Bolten, ii, 135, 1798, for 
Chemn. 10, t. 151, f. 1432, 1433) on the same basis, while Lamarck had named 
the species Mitra millepora (Ann. Mus. Paris, vol. xvii, p. 198, 1811) before 
Dillwyn (Cat. Descr. Shells, p. 559, 1817) legitimatised Chemnitz’s non-binomial 
name. 
A beautiful addition to the Queensland list is Martyn *s Mitra sphcerulata 
(Univ. Conch., vol. i, f. 21, 1784), which must be placed in the genus Scabricola 
Swainson (Treat. Malae., pp. 130-319, 1840). Under Costellaria Swainson 
(Treat. Malae. pp. 130-320, 1840) to he added are; Mitra intertaniala Sowerby 
(Thes. Conch., vol. iv, p. 35, pk 361 (Mitra, pi. x), f. 154, 1874) ; Mitra 
concentrica Reeve (Conch. Icon., vol. ii (Mitra, pi. xvii), f. P2S, Oct 1844: 
I. Annaa) ; and Mitra armiger Reeve (id. ib., pk xxxv, f. 288, March 1845). 
In the genus Aremmitra, in addition to arenosa Lain, must be added: 
Mitra cipproximata Pease, Proc. Zook Soc. (Loud.) 1860, p. 146; Mitra 
cadaver osa Reeve, Conch. Icon., vol. ii, pk xxi, f. 160, Nov. 1844; Mitra lorulosa 
Lamarck, Ann. Mus. Paris, vol. xvii, p. 216, 217, 1811 : Aremmitra mi chad is nom. 
nov., for M. exasperata Reeve Conch. Icon., vol. ii, pk xxi, f. 162, 1844. 
Another species of (Airy same II. &. A. Adams (Gen. Rec. Moll., vol. i, 
p. 171, 1853) to be added is Mitra tiarella A. Adams (Proc. Zook Soc. (Lond.) 
1851, p. 133), as determined by British authorities dealing with Lifu shells. It is 
unfortunate that no reliance can be placed upon these identifications, the only 
ones many Austral students have, as the types were available to the London 
