434 Lieut.-Col. H. H. Godwin- Austen on a 
The middle of the bone is rounded and measures 9°5 centim. 
in circumference ; its upper portion is compressed laterally, 
so that it is only about 1 centim. thick; its greatest width is 
Fig. 3. 
Pelvic girdle of Murenosaurus from the side. pu, pubis; zs, ischium ; 
a, ilium. About 51, nat. size. 
57 centim.; the upper border is curved and bears a groove 
for cartilage. The inner surface bears scarcely any trace of 
its junction with the sacral ribs, and the connexion with the 
vertebree must have been a very slight one, the whole pelvis 
having been held firm chiefly by the greatly expanded pubes. 
The distance between the upper ends of the ilia is about 
13 centim. 
The dimensions of the associated femora are :— 
centim. 
PCR PUNG. 222 ohn We ta eae eee ots BInOMEY od ete ene eo 28 
Circumference of shaft at the narrowest point ...... 18 
With Gi disthlend)\\o5.. tk sa caaits aaah ane 16 
Numerous cervical vertebre, as well as some dorsals and 
caudals of the same individual, are preserved in the collection. 
LIX.—Description of a supposed new Species of Land- 
Mollusk of the Genus Parmarion from Pulo Laut, an Island 
off the South-east Coast of Borneo. By Lieut.-Col. H. H. 
GopWIN-AUSTEN, F.R.S., F.Z.8., &e. 
[Plate XIX. ] 
In a collection of land-shells preserved in spirit, collected by 
Mr. William Doherty, of Cincinnati, in the islands of the 
Malay Archipelago, I found two specimens of a slug-like 
form from Pulo Laut, the island off the south-east coast of 
Borneo. I hasten to describe it, having early this year, in 
conjunction with Mr. Walter E. Collinge, published a paper 
