54 MEMOIR IIL 



voyage in 1825,) which amongst a variety of Gammari, 

 Cyclops and other marine animals, produced a solitary 

 specimen, which on investigation, proved to be the type of 

 an approximating Genus, (CjTithia) so that it still remains 

 a desideratum to know in what manner the ova are disposed 

 of and hatched after exclusion from the Ovarium, and 

 whether the animals undergo any change or metamorphosis 

 during their progress to maturity. 



This luminous animal, which is the only species of 

 Nocticula as yet known, I have named Banksii from 

 its first discoverer, and as a small tribute to a Natu- 

 ralist possessed of affluent circumstances, yet whose zeal 

 for the cultivation of knowledge led him to expose him- 

 self to the greatest personal risk and inconvenience — to 

 devote his fortune and his whole life to this object, and 

 finally to bequeath his valuable and accumulated stores 

 of knowledge to posterity. It may be truly averred that 

 no one individual was ever so instrumental in promoting 

 and encouraging every species of knowledge and every 

 useful art : the recollection of these circumstances, of the 

 admirable arrangements which he made for this purpose, 

 and of his obliging condescension and affability to all, must 

 cherish a grateful remembrance in the breast of every 

 Philosopher and Naturalist of the same era, while his 

 bequest to the Nation which he adorned, will secure to him 

 the admiration of posterity, more than any other Monument 

 that could be erected to his memory. 



The following description of the Luminous Shrimp, has 

 been copied from my journal. 



Corselet like that of the shrimps. 



Abdominal portiofi of seven joints. 



Tail com\)osed of five lamina, the outer ones the broadest, 

 oblong, serrate on their inner edge and ciliate, intermediate 

 ones nearly linear, serrate and ciliated, middle lamina ta- 

 per, acute, having a subulate appendage on each side 

 towards its apex. 



