Timms: A revision of Limnadopsis clam shrimps 
59 
Timms, AM P76806; 1 $, near Trangie, Old Cathundral, 
31°55'S 147°50'E, 12.ii.1941, W.R.G. Officer; IS, 6$, 
Griffith District, Rice Bay, 34.3°S 146.0°E, 15.xi.1979, E.L. 
Jones, AM P53290; 13<?, 8$, no data, P6788; 6$, SW of 
Ivanhoe, Mossgiel, 33°12'S 144°36'E, no date, H.K. Bennett, 
AM G 5224; 3 S, 3 9, NW of Cootamundra, Bland district, 
34°18'S 147°48'E, no date or collector, AM G5226; 42 indi¬ 
viduals, W of Cooma, Coolringdon Station, Fat Hen Lake, 
36°16'S 148°56'E, 19.iv.1992. B.V. Timms, AM P76807. 
Queensland: 12 individuals, S of Bollon, Bendee Station, 
a Clearwater lake, 28°12T0"S 146°43'35"E, 23.iv.2004, S. 
Peck, QM W28373; 11 individuals, SW of Cunnamulla, 
Rockwell Station, Buster Black Box Swamp, 28°48'S 
145°02'E, 9.xii.l999; B.V. Timms, QM W28374. 
Distribution. Inland NSW and southern inland QLD, but 
could be further north, west, and south of this area. 
Comments. Henry’s (1924) account is sufficient to identify 
the species, but is inadequate on details and contains some 
significant inaccuracies. One of these is the claim that there 
are about 30 pairs of thoracopods whereas there are 25-26, 
and another is a supposed series of spines on the basal 
three-quarters of the caudal claw, whereas there is actually 
a mixture of a few spines apically and many setae basally. 
Furthermore, Henry (1924) wrote that the “the end claws are 
not so strongly armed” in females, whereas little difference 
from the situation in males, or the opposite, was observed 
in the syntypes. The species is redescribed below, on the 
basis of the syntypes. 
Redescription. Male: Carapace (Fig. 8A) oval, generally 
about 15 mm long and 9 mm, L:D ratio of 1.66. Dorsal 
margin weakly convex and with slight depression anterior to 
weakly developed umbo. Both dorsoanterior and dorsoposte- 
rior angles indistinct, and anterior carapace, and particularly 
the posterior carapace, protruding and strongly but unevenly 
convex. Ventral edge weakly and evenly convex. Dorsal 
margin almost smooth, though with some slight serrations 
at posterior growth lines. Growth lines 11-12, typically 
weakly developed. Carapace weakly granulated within, but 
with smooth, somewhat lustrous, surface. 
Head (Fig. 8B) with pyriform frontal organ situated pos¬ 
teriorly and about as high as eye mound Anterior side of eye 
mound and rostrum meeting at about 120°, junction evenly 
curved. Rostrum triangular, about 1.5 t im es longer than its 
basal width, with apex narrowly rounded and naupliar eye 
situated basally with its axis tipped about 45° ventrally to 
that of rostrum. First antenna subequal in length to peduncle 
of second antenna and with about 9 lobules. Second antenna 
with peduncle of about 12 apparent segments and flagella 
with 16-18 flagellomeres. Spination of middle flagellomeres 
variable, ranging from 4-7 spines and sometimes with two 
grouped apically. 
Trunk segments usually 25, occasionally 26, each bearing 
pair of thoracopods, these decreasing in size posteriorly with 
anterior two modified as claspers. Posterodorsal armature 
with 1-3 spines on small protuberances on each of last 6-7 
segments and a few setae on 4-6 segments anterior to these. 
Claspers of normal Limnadopsis structure, but with 1-3 
spines apically on movable finger and prominent protrusion 
Fig. 9. Limnadopsis parvispinus Henry, Bollon, Qld. Male: (A) carapace; (B) head; (C) telson; (D) cercopod; (E) 
clasper. Scale bars 1 mm. 
