266 
MEMOIRS OF THE QUEENSLAND MUSEUM. 
anterior end slopingly truncate, the sculpture a little finer; the muscle scars 
are more regular than shown by Hedley, the sinus being normal: measuring 
12x8 mm., a larger one 14 x 9 mm. This may be named II. avecta sp. now 
From New Caledonia a small cream shell measuring 9x7x5 mm. is 
shorter, more obese, posterior end a little attenuate, the posterior angle more 
acute, sculpture a little coarser, gaping anteriorly and with the ventral edge 
sinuate, and is here named II. pansa sp. nov. 
An odd shell is here figured (Plate A, figs. 5, 6) and named II. saltatrix 
sp. nov. It is from Michaelmas Cay, and differs in shape, as otherwise it might 
be regarded as an aberration. The posterior end is somewhat acutely attenuate, 
the ventral edge well rounded, anterior edge nearly straight, abruptly truncate; 
the valve measures 18 x 12-5 mm. The sculpture is erratic; the figure will 
explain this better than any description. Hedley gave a good description of the 
species T have named II. hedlcyi, and divided the shell surface into four panels, 
and in this shell the anterior panel is subdivided into three. It may be noted 
that the umbonal sculpture is normal concentric ridging, the peculiarities 
developing later. 
Family TELLINIDHC. 
This family demands study, as there are scores of unnamed species now 
accumulated in the Australian Museum and every collection adds to the number. 
The working out of the genera is a prime necessity, and it will be a difficult task, 
as so many different types have become associated. Thus I cannot find a place 
for such a well-known shell as Tellina rugose# Born, and this may be due to pure 
carelessness, as 1 find that although Born pointed out, when he introduced his 
species, that his name was preoccupied no correction has yet been made. 
Fortunately there is an excellent figure given in Martyn s Univ. Conch., pi. 138, 
1787, with the name Cochlea pal at am from China, so that a general name is 
readily available. The Queensland shells have more pronounced sculpture, are 
more elongate, and have narrower beaks, and may be. later separable. As the 
species cannot be classed in Tellina (s. str.), a different generic name Quidnipagus 
is here proposed, naming Martyn’s C ochlea pul at am as type. 
Many smaller species with names may be here added to the Queensland 
fauna. Two small Tellinids with wavy-line sculpture may be classed together 
with the new name Jactellina > naming Tellina obi iguana Deshayes as type; these 
are Tellina ohliguaria Deshayes ( P.Z.S., 1854, 35b; habitat unknown: Sowerby, 
Conch. Icon., xvii, pi. Jiv, sp. 321, Oct. 1868), and Tellina balansm Berlin (Nouv. 
Arch. Mus. Paris., ser. 2, vol. i, 1878, p. 275. pi. ix, f. 10 a, 1): New Caledonia). 
A species a little different may be here placed temporarily: Tellina hung erf or di 
Sowerby (Proc. Mai. Soe. (Loud.) i, 159, pi. xii, f. 22, 1894: Hong Kong). 
Two other small species may be included in a new genus Ob tellina, the 
first-named being selected as type, viz: Tellina bougei Sowerby (Proc. Mai. Soe. 
(Bond.) viii, p. 200, fig. in text, Apl. 1909; I. of Monac, New Caledonia) ; and 
Tellina ohfusalis Deshayes (P.Z.S., 1854, 355: Sowerby, Conch. Icon, xvii, pi. 
xlvii, sp. 281, Oct. 1868). 
In the Queensland list appears Tellina, rhamboides Quoy and Gaimard, 
and as that name was preoccupied a substitute was necessary, and there was a 
series of synonyms apparently to select from. An unquoted one, however, in 
Tellina dlathrata Deshayes (Hist. Anim. s. Vert. (Lam.) vi, p. 208, 1835, intro- 
duced for Quoy and Gaimard s figures, pi. 81, figs. 4, 5, 6, 7) effectually stifled 
all opposition, as it had appeared before Q. & G.'s letterpress. 
