QUEENSLAND MOLLUSCAN NOTES, No. 1. 287 
workers, and it would have been very helpful had only necessary care been taken 
in comparisons. 
Two more species have to be added under Strigatella, viz. : Mitra litterata 
Lamarck, Ann. Mus. Paris, vol. xvii, p. 220, 1811 ; Mitra auriculoides Reeve, 
Conch. Icon., vol. ii, pi. 28, f. 228, Jan. 1845. Another addition to be made is 
Mitra -puncticulata Lamarck, Ann. Mus. Paris, vol. xvii, p. 198, 1811, a species 
which Tryon placed under Mitra restricted, that is Mitraria to-day, but it 
certainly is not a true “ red-spotted Mitre. 7 ’ 
There are some other small Mitres to be yet determined from Michaelmas 
Cay, but mention must be here made that an addition has been made by Melvill, 
who has described Mitra ( Costcllaria ) qucesita (Proe. Mai. Soc. (Loud.) 'vol. xvi, 
p. 219, pi. x, f. 4, July 1925) from North Queensland. 
A curious kind of Mitroid shell, appears in Hedley’s list under the name 
Cylindra crenulata Gmelin. The species was not uncommon at Michaelmas Cay, 
but with it there was a slenderer species which appears to be unnamed. The 
genus Cylindra was introduced by Schumacher (Essai. nouv. Syst. test, pp. 71- 
236, 1817), and has been rejected on account of the prior Cylinder Montfort 
(Conch. Syst. ii, 390, 1810) ; this has been questioned, so it is delightful to record 
that Sherborn has indexed (Index Animalium ii, p. 1744) a prior Cylindra 
111 iger (Mag. f. Insekt. (Illiger) i, p. 303, 1802) which effectually settles all 
argument. 
Fischer (Manuel de Conch., pt. vii, p. 614, June 30, 1884) provided 
Gylindromitm as a substitute, giving crenulata as the example. This can be 
used, as although there is an earlier Dactyius Humphrey (Mus. Calonn., p. 9, 
1797) whose tautonymic type is Voluta dactyius Linn., the present form may not 
be congeneric. 
Cylindromitra fastidiosa sp. nov. 
( Plate xxxr, fig. 20.) 
Shell elongate, mouth narrow, colour white. It can be best described by 
comparison with the well-known crenulata , but the Queensland form of that shell 
differs and may be named C. crenulata toleranda subsp. nov. (Plate XXXI, fig. 
19). The new species is smaller, narrower, and more delicately formed with eight 
or nine plaits on the columella instead of six or seven; there are forty to fifty 
spirals instead of thirty, and on the antepenultimate whorl four rows can be 
counted instead of two; the subsutural row is finely crenulate instead of coarsely 
reticulate; the colouration seems to be constantly white, whereas C. c. toleranda 
is girdled with pale brownish-yellow blotches with a more open mouth. The type 
of C. fastidiosa is 13*5 mm. long by 5*25 mm. wide, while the immature specimen 
of C. c. toleranda figured measured 15*5 mm. by 6*5 mm., an adult of the latter 
species measuring 22*5 mm. by 11 mm. 
Another species, Mitra undidosa Reeve (Conch. Icon., ii, sp. 193, 1844), 
described from the Philippines, was synonymised by Tryon with crenulata, but 
it is very distinct and lias been sent from Broome, North-west Australia. 
Shirley recorded “ Cylindra n ace a Meuschen from Bowen, 77 and the 
species which should be called Amiticylindra nucea Gronow (Zoopliyl. Gronov. 
Icon. Explic., pi. xviii, f. 11, 1781 : no locality) can be admitted, as it occurs on 
the Capricorn Group, and differs so remarkably from crenulata and dactyius 
that I provide the new genus name Acuticylindra for it alone. 
T 
