APPENDIX. 327 



was stretched out to a great length, and bent into 

 the form of a hook at the end. On the outer side 

 was observed a fleshy streak, bordered by a close 

 row of small paunches : these paunches, which were 

 externally open, contained a great quantity of brown 

 atoms, apparently spawn, and evidently in motion. 

 With respect to the Rhizophysce, it has been disco 

 vered that they are of the same genus as the 

 Physsophora, the hard part being torn away in the 

 act of catching them ; upon this occasion also, seve 

 ral of these separated parts, still in motion, and 

 bearing some resemblance to salpas, were brought 

 up, and accurately examined. 



Off the Cape de Verd Islands, in addition to the 

 Exoccetus rolitans, which abounds there, various 

 specimens of the much larger Exoccetus exsiliens of 

 Cuvier alighted on board our vessel. The latter 

 species is distinguished by the long black fins of 

 the belly, and by its remarkably large eyes, differing 

 greatly from the species described by Gmelin under 

 the same denomination. 



The calms near the Equator afford an abundant 

 harvest to the zoologist, the tranquil water pre 

 senting an immense variety of marine animals to 

 his view, and allowing him to take them with little 

 trouble in a net. The open woollen stuff used for 

 flags offers the most convenient material for making 

 these nets, as it allows the water to run through 

 very quickly, and does not stick together. A short, 

 wide bag should be made of this stuff, which may 



