LUCERXARIAD.E : LUCERNARIA. 

 Fig. 55. 



247 



mottled with two rows of spots, occasioned by the ova (6) ; and they 

 are connected together by a thin transparent membrane. Between 

 each pair there is an oval vesicle (c) placed on the edge of this mem- 

 brane. Lamouroux asserts, apparently on the authority of Ch. Muller, 

 that this vesicle appears only at certain seasons, and again disappears, 

 a statement which requires confirmation. Mr. Peach believes them 

 to be constantly present. The mouth forms a slight quadrangular 

 projection in the centre of the cupped expansion, exactly opposite 

 the contracted base. 



In the specimens which furnished the vignette to this order (Fig. 

 57), there were nine glanduliferous tufts ; and Montagu's figure re- 

 presents a monstrosity with seven only, but as there is no appear- 

 ance of marginal tubercles in it, the figure may belong to the fol- 

 lowing species. Mr. Cocks has found it pure white with five arms. 



Otho Fabricius tells us " Vescitur oniscis, prsesertim onisco 

 abyssino, quern semper fere solum in ventriculo ejus inveni ; raro in 

 majoribus squilla lobata occurrit. Hi miseri in aperturarn corporis 

 dilatatam offendentes, statim tentaculis concludentibus capiuntur et 

 ingurgitantur. Saepe in uno verme plures oniscos invenire contigit, 

 interioribus corruptis, exterioribus adhuc integris." 



" Some time since I got four specimens of Lucernaria auricula, 

 and I was much pleased to notice the use of the little marginal 



