1862.] MR. G. KREFFT ON FURINA TEXTILIS. 1 19 



Length of carapace, nearly 4 lines ; breadth at umbo, rather more 

 than 2 lines. 



Hab. Lake Winnipeg, N. America (JV. Caldwell, Esq.). (Mus. 

 Brit.) 



7. LiMNETis GOULDii, Baird. (Plate XV. figs. 7, 7 a, 7 h, 7 c.) 



Carapace nearly quite globular, ventricose, and of a light horn- 

 colour. Surface of valves smooth, not ribbed, and covered entirely 

 •with numerous very small hollow^ punctations exactly resembling 

 those on the top of a thimble. The point to which the adductor 

 muscles are attached is very marked, being slightly prominent, and 

 very smooth and shining ; and the branchial canals on the surface 

 of the valves are strongly exhibited. 



This species resembles very much i. wahlbergii of Loven, from 

 Port Natal. In addition, however, to the total difference of habitat, 

 this species differs from the one described by Loven in size, being 

 double the dimensions of it. The animal, too, di6fers in some par- 

 ticulars ; but as all the specimens I have examined are males, and 

 the one figured by Love'n is a female, I do not know how far these 

 differences may be merely sexual. 



Diameter of carapace, about \\ line. 



Hah. Fresh water at St. Ann's, twenty miles from Montreal, 

 Canada. Collected by Charles Gould, Esq., June, 1857. {^lus, 

 Brit.) 



6. Note on I^urina textilis. By Gerard Krefft, Acting 

 Curator Austr. Mus. 



During my rambles in the neighbourhood of Sydney I have found 

 a number of small Snakes, varying in length from 8 to 12", and an- 

 swering to the description giA^en by Dumeril and Bibron of Furina 

 textilis. None of the specimens obtained have exceeded 1 6" in length ; 

 and 1 have been naturally anxious to procure the young of this spe- 

 cies. During two years I was unsuccessful, and I began to think 

 at last that this Snake was only the immature form of some other 

 species, which supposition became a belief when some months ago 

 1 found an egg containing as large a specimen of Fm'ina textilis 

 as I had ever met with before. On further investigation I found 

 that the distinct bands and black spots of this Snake faded with the 

 growth of the individual, and apparently vanished altogether in old 

 specimens. As the egg and young in my possession are of a size 

 generally produced by Snakes from 3 to 4 feet in length, and as I 

 have a series of specimens in which the disappearance of the bands 

 and markings may be clearly traced, I do not hesitate to assert that 

 Pseudonaia textilis is only a young Snake. Inviting the scrutiny of 

 more able naturalists than myself to this fact, I beg to refer at the 

 same time to my collection forwarded to the International Exhi- 

 bition, specimens Nos. 66 and 40, which I believe to be identical. 



I have since forwarded a full-grown adult Snake of this species to 



