274 
Penis retractor inserted on epiphallus; penis without ap- 
pendage. 
Apex or whole shell with quincuncially arranged hair-scars ; 
jaw ribbed. [CHLoRITIS. | 
Surface hairy, or marked with regular series of hair-scars 
to the apex. Section AUSTROCHLORITIS. 
Apex not so sculptured. 
Shell depressed, last whorl deeply deflexed in front ; jaw 
smooth. [ PLANISPIRA. | 
Jaw ribbed. s.g. ANGASELLA. 
Shell of thinner texture, basal lip more or less toothed. 
Section TRACHIOPSIS. 
Shell various, generally densely granulated ; jaw ribbed. 
é THERSITES. 
Shell conoidal, generally banded, the spermatheca having 
a long duct s.g. THERSITES. 
Sheil lense-shaped. Section 'THERSITES (s.s. ). 
Shell depressed with conoidal spire, obliquely 
striate or hirsute. 
Section LADRA. 
Shell globose, surface densely granulated all over. 
Section BaDISTES. 
Shell depressed, keeled, with corrugated and granu- 
lated surface. Section GLYPTORHAGADA. 
Shell globose, surface smooth to the unaided eye. 
Section SPHROSPIRA. 
Shell depressed globose, calcareous in texture, often 
multilineate. s.g. RHAGADA. 
Shell globular, with wide columellar lip; the sperma- 
thecal duct short. s.g. XANTHOMELON. 
Shell trochoidal, thinner, and mostly light colored. 
PAPUINA. 
2. ORDOVICIAN RocKS IN QUEENSLAND. 
At the August meeting in 1893 I exhibited “a species of 
Euomphalus indicative of the Silurian epoch, obtained far to the 
east of the Macdonnell Range,” at 20 miles west from Took’s 
Waterhole in Cairns Range (vol. XVII., p. 354, 1893). The 
specimen alluded to is the impression of the upper surface of an 
Evomphaloid shell, which was obtained by Mr. South, Warden of 
the Gold-fields, then stationed at Alice Springs, at Cairns Range. 
The fossil was sent to Mr. East, and by him handed to me for 
determination. Among the fossils collected by me among the 
Ordovician rocks of the Larapintine region, when attached to 
the Horn Expedition, are several specimens of an Hwomphalus or 
Oriostoma-like shell, either identical with or very closely allied to 
