106 PROCEEDINGS OF THE ROYAL SOCIETY OF QUEENSLAND. 
both transverse rows of the central rosette has also been observed in a 
number of individuals. Although not definitely observed, indications 
of the presence of a narrow marginal zone have been seen around the 
anterior extremity of several valves. It is possible, moreover, that the 
apparent absence of a marginal zone may be the result of brittleness of 
the shell, and consequent breaking, especially around the free edges of 
the valves. In all individuals the shell has been found to be fairly 
strongly calcified, whitish, and translucent to opaque. The generic name 
Erpetocypris is written as H erpetocypris by most zoologists, and this 
genus belongs to the subfamily Herpetocypridinae, the members of which, 
as the name indicates, are creepers. They are, in fact, incapable of 
swimming in the adult state, and are only found creeping among the 
plants, and crawling and burrowing in the mud on the bottom. 
Localities and Range: In The Narrows Tertiaries: Bores 1, 3, 4, 5, 6, 
12, 13, 14 (see species occurrence charts), parishes of Targinie and 
Bundle, county of Deas Thompson, between Gladstone and Rockhampton. 
In the Petrie Series: Brecknell’s Bore, at somewhere between 60 and 
178 feet,, subdivision 10 of portion 222, parish of Warner, county of 
Stanley, near Strathpine, between Brisbane and Petrie ; from old well on 
portion 190, parish of Warner, approximately two miles W. of Strath- 
pine; Houghton’s Bore, at about 45 feet, portion 24, parish of Warner, 
near Lawnton; from Simpson’s well, portion 186, parish of Nundah, 
county of Stanley, near Bald Hills, between Brisbane and Petrie. In the 
Baffle Creeh Tertiaries: From No. 2 Shaft, portion 30, parish of Warro, 
county of Flinders, near Lowmead, between Bundaberg and Gladstone; 
from various depths in the Lowmead No. 1 Bore, in the N.W. corner of 
the above portion. In the RedbanJc Plains Series: Gully on portions 
118, 119, 120, parish of Bundamba, county of Stanley, approximately 
five miles S. of iGbodna, between Brisbane and Ipswich. This species is 
definitely a long-ranged form. Since it ranges through much of The 
Narrows material, and is common in all the Petrie Series, Baffle Creek, and 
Redbank Plains material examined, its range is probably Oligocene and 
Miocene. 
Erpetocypris f subtriangularis, sp. nov. Plate VI, fig. 5. 
Holotype: F. 1980, Queensland Geological Survey Collection. 
Locality: Bore 3, at 94 feet, parish of Rundle, county of Dea& 
Thompson, between Gladstone and Rockhampton, Queensland. Geological 
Horizon : The Narrows Tertiaries. 
Description: Carapace medium-sized, in lateral view sub triangularly 
obovate, highest near anterior third. Height somewhat greater than one- 
half of length. Dorsal margin obliquely arched, sloping gradually from 
position of maximum height to anterior extremity, but steeply to 
posterior extremity. Ventral margin almost straight. Anterior extremity 
broadly and evenly rounded. Posterior extremity narrowly and acutely 
rounded. Valves moderately convex to rather compressed. Convexity 
fairly regular, and position of greatest thickness located slightly behind 
middle. Valves subequal, left slightly overlapping right along ventral 
margin and the two extremities. In profile narrowly oval, with anterior 
part more compressed than posterior. In end view suboval. Surface 
unomamented, smooth except for few scattered punctations. Shell of 
medium thickness, brittle, chitino-calcareous, whitish, and translucent to 
Opaque. 
