874 



V. S. p. R. R. EXP. AND SURVEYS ZOOLOGY — GENERAL REPORT. 



of other species are devoured by them when left unprotected. They do not dive, hut rest 

 liglitly upon the water, and rise easily from its surface. 



A second species of lachypetes, T. palmerstonii, is admitted by some authors and denied by 

 others. 



List of specimens. 



