Analytical Synopsis of the Order of Squali. 371 



IV. Rhina ; capite depresso ; ore in cxtremitate. 



1. Rhina sive Squativa omnium autorumzzzR\\\\\a. squatina Raf. 



2. Rhina pedata quasi ; cauda in superiori parte tripenni.* 



The four genera thus established correspond to the single 

 Artedian genus Squalus. The generic names are all new, that 

 of Squalus not having been retained for any special group. As 

 that name must be accepted for some one genus, and as no 

 type was mentioned by Artedi, it would then appear that the 

 subdivision containing some species of the Artedian Squalus 

 conforming to the original diagnosis, should retain the name 

 restricted to it by the iirst succeeding naturalist, and that the 

 name of Klein's group equivalent to, or embracing that subdi- 

 vision, should be regarded as a synonyme. 



As will be hereafter shown, Kalinesque was the first to 

 restrict the Artedian genus by confining it to those sjaecies with- 

 out an anal fin — the first species of Linnceus. Klein's Galeus 

 embracing such, that name will then be considered as a 

 synonyme. 



. The characters assigned by Klein as distinctive of his Cyno- 

 cephalus and Galeus have nothing like the relative importance 

 attributed to them, nor have his principles been strictly applied, 

 since several of his Galei have mouths whose fissures are nearly 

 as long as in his GynoGephalus. Still, as the two are founded 

 on actual characters, CynocephaLus should apparent!}^ be 

 retained as a generic appellation. 



* The second species, of Rhina, regarded by Klein himself as problematical and 

 factitious, was founded on an extraordinary description of an animal exhibited in 

 London in September, 1737, having a " fin on each shoulder in shape something 

 like the wings of a cherubim." Autor hunc piscem pro Sirene Antiquorum agno- 

 scit; qui in anno 1*737, mense Septembri captus et Londini expositus fuit; sed 

 vereor, ne lucri causa mentulae distortse et in pedum simulacra, ope fill ferrei vel 

 aenei, efformatse fuerint ; adeo hiijus piscis descriptio convenit cum prsecedenti ; 

 nisi quod tres pinnas in cauda, et quasi pedes habeat. The three fins on the tail, 

 doubtless, included the caudal. The " feet" were likewise, probably, the sexual 

 organs of the male. 



