CIROLANA CRANCHII, 297 
confines his specific description to four lines, given as a 
quotation from Leach : ‘‘ Corps lisse ponctué ; Je dernier 
article de l’abdomen triangulaire, arrondi a son extré- 
mité, Jame externe des derniéres fausses pates plus grande et 
plus large que Vinterne ; cette derniére tronquée a son extré- 
mité.”* Teach’s description is, however, confined to the 
pereion and last joint of the pleon, and M. Milne Edwards 
appears to have intercalated the latter portion of his 
characters from Leach’s general observations on the third 
race of the Cymothoadz (comprising the genera Eury- 
dice, Nelocira, and Cirolana): “‘ dans ces trois genres la 
petite lame ventrale postérieure externe est plus grande 
et plus large que l’intérieure.” In Eurydice, however, as 
well as in the only species of Cirolana described by 
Leach, the inner plate is considerably the larger, its 
inner margin being somewhat obliquely truncate, whilst 
the outer plate is the smaller, and is more or less pointed. 
Mr. A. White unintelligibly says, “‘ small plates of the 
posterior ventral appendages larger and wider than the 
inner.” As will be seen in our lower left-hand figure v at 
the head of this species, the outer plate (at the right side 
of the figure) is small and elongate-conic, the inner plate 
much larger, and somewhat obliquely truncate, whilst the 
basal portion is furnished with a conical point, extending 
half the length of the inner plate. The appendages as 
well as the edges of the terminal segment of the tail are 
strongly fringed with sete. The legs are but slightly 
spinose and rather slender. The ridge between the base 
of the lower antennz is not so narrow as in C. spinipes. 
* M. Milne Edwards, in his generic character of Cirolana, describes the two 
plates of these lateral caudal appendages as being ‘‘a peu prés de méme 
grandeur,” but in his description of C. hirtipes he says that ‘‘l’interne est 
plus large que l’externe,” and in C. elongata ‘‘ lame externe trés petite, l’in- 
terne grande et arrondie au bout,” 
