98 



the Juumimmty of the Sea, 501 



generally found that, out in the open ocean, the little animals 

 belonging to Mliller's Entomostraca, and most probably to his 

 genus Cyclops, were by far the most numerous, but that their 

 power of emitting light was fainter and less easy of satisfactory 

 proof (they are so exceedingly minute) than that of the others 

 to be described, which were generally most abundant in straits, 

 or near sand-banks, such as the Aguillas Bank off' the Cape 

 of Good Hope, &c. One of these minute creatures I have 

 sketched, highly magnified {Jig.9S.a^ b), evidently belonging 



to the genus Cyclops. 

 It resembles, in general 

 appearance, e and^ fig. 

 83. Vol. III. p. 315., 

 but differs materially 

 from both the animals 

 there represented in the 

 length and form of the 

 antenn£E, which are 

 much shorter, and 

 somewhat articulated. 

 In general outline, too, it differs somewhat, and appears a 

 more graceful animal than either of the two former : b repre- 

 sents a view of it lying supine, or on its back. These minute 

 creatures were not larger than a grain of sand. 



a, bf and c {Jrg. 99.) appear to belong to the division 

 Radiata, or radiated animals. 



a [Jig, 99. ) appeared, when submitted to the microscope, to 

 be composed of a small circular body of short tentacula, very 

 numerous, with larger and longer ones, but fewer in number, 

 running through it, like the spokes of a wheel. The whole 

 animal, with the exception of the largest tentaculum, was en- 

 veloped in a loose membranous expansion or bag. 



b [Jig. 99.) much resembled, when seen by the microscope, 

 an JSchinus. It was covered with numerous very short spines, 

 like most of the sea eggs, a number of larger and longer ones 

 projecting considerably beyond them. The animal was a per- 

 fect sphere. These two last-mentioned animals were each 

 about the size of a grain of sand ; a rather the larger of the 

 two. 



c [fig. 99.), perhaps, instead of being referred to the Ra- 

 diata, ought to be placed amongst the Entomostraca of MUller, 

 as it seemed to be contained within a fine, transparent, delicate 

 shell. It may be described generally as a round, glutinous, 

 perfecdy transparent body, with four very long tentacula, and 

 two short ones. A cylindrical body occupied the centre, 

 containing the viscera apparently ; while four fine rib-like 



K K 3 



