84 ADDENDUM TO NEBALIA. 



Coronula; the larvae of this Genus must of necessity pos- 

 sess mscful eyes and a more powerful and perfect natatory 

 apparatus, in order to perceive and pursue the Cetaceous 

 animals (Whales) upon which they finally fix them- 

 selves. 



We must not, however, shut our eyes to the facts 

 furnished by Otho Fabricius in regard to the breeding of 

 Nebalia, which if not deceptive, completely annul any such 

 idea, and show it to be a peculiar Genus, most nearly re- 

 lated to the larvae of the Balani, to which it will thence 

 bear the same relation, as Mysis to the Dccapodous 

 Macroura. 



The first animal of the present type was discovered by 

 Otho Fabricius, and published with a figure in his Fauna 

 Groelandica under the title of Cancer bipcs, p.256 No. 223 

 f. 2, which figure has been copied by Herbst in his Work 

 on Crabs, &c. PI. XXIV. f. 7- Montagu more lately de- 

 tected on the South coast of Devon, the individual 

 figured in the Linnaean Transactions, Vol. XI. t. 2, f. 5, and 

 still more recently Dr. Leach, the founder of this genus, 

 has furnished us with a third, to which he assigns as a 

 habitation, the European Ocean, ZooL Misc. Vol. 1, 

 p. 100, t. 44. 



All these. Dr. Leach, Desmarets and some other Natu- 

 ralists consider as identical, or of the same species, and as 

 the former gentleman from his more intimate knowledge 

 of the accuracy and discriminating powers of his friend 

 Montagu, is of this opinion, it would be presumptions, 

 in us to dispute the propriety of this decision ; Mons. 

 Lamarck not swayed by this consideration, very properly 

 considers the Nebalia of Fabricius and Leach different 

 from that of Montagu, the diflferences however, are 

 principally such as might be supposed to arise from the 

 latter using magnifyers of higher power, and bringing to 

 the examination a greater or less degree of skill and scien- 

 tific knowledge, thus his figure has all its members and 



