535 



the fawn and the whitish colour of the upper and under surface sug- 

 gesting the idea of the line of the aperture of the mouth (see fig. 1). 

 _ It seems to use the right- or left-hand siphon indifferently. The 

 siphons are ahout |rd of an inch in diameter. It has the power of 

 walking or moving about upon its arms. It swims rapidly in a 

 horizontal attitude, elongating the body, and propelling itself with 

 a frog-like motion, by opening and contracting its arms. 



When I poured off the water, it discharged at two or three jets 

 through the siphons a small quantity of black fluid, which remained 

 undissolved for some time, in small cobweb-like clouds, floating 

 about on the water. It has the power of contracting the skin above 

 the eyes, so as to make a small horn-like projection ; but this only 

 rarely appears. The belly gives you more the idea of a snout than 

 anything else. It is about the size of a full-sized Turkey's egg. 

 It walked high, on the tip of its arms (see fig. 2). 



10. On Lepidosiren. By General Perronet Thompson, 

 F.R.S. In a Note to Dr. Gray, F.R.S. 



" Eliot Vale, Nov. 2, 1858. 

 " My dear Sir, 



"In a periodical called the ' Leisure Hour,' No. 357, for Nov. 1, 

 1858, I find your name in connexion with the Lepidosiren annectens, 

 as procured from the Gambia in 1837. 



" I was acquainted with the creature in 1810 at Sierra Leone, or 

 more strictly at Banse Island, where the girls used to go and catch it 

 under the name of * Jumping Fish,' and then eat it ; and in June 

 or July 1815, 1 recognized the same creature, or one very like it, on 

 the mud in or about the fosse of Fort George, Bombay. 



" It travels about the wet shiny mud, and appears to be seeking 

 its food. When it chooses, it can jump, in the way that the shrimp 

 does when on shore. 



" Of its habits in any other respects I have no information. I ap- 

 prehend the figure in the ' Leisure Hour ' to be very exact. I never 

 saw it larger than the figure. 



" Yours very truly, 



" J. E. Gray, Esq." " T. Perronet Thompson." 



11. Descriptions of New Species of the Genus Paludomus, 

 from Ceylon, in the Collection of Hugh Cuming, 

 Esq. By H. Dohrn. 



1. Paludomus hanleyi. Testa semiovalis, nerit&formis, so- 

 lida, olivacea unicolor vel saturatius longitudinaliter striata, 

 decussata ; spira exserta ; anfractus convexi ; apertura ob- 

 liqua, ampla, labio columellari magno, margine interno vix cur- 

 vato, externo semicirculari ; alba veljlavescens. Operc. ? 



Long. 18, lat. 15 ; apert. long. 15, lat. 13 mill. 



