Analytical Synopsis of the Order of Squali. 383 



15. — In 1851, a " List of the Specimens of Fish in the Collec- 

 tion of the British Museum, Part I. Chondropterygii," was pub- 

 lished by that institution. The name of the author is not given 

 on the title-page. Dr. John Edward Gray, in the introduction, 

 states that the specimens of the Sharks and Eays which were 

 not named by Messrs. MUller and llenle when engaged in their 

 work, or by Dr. Andrew Smith, " have been determined by 

 Mr. Edward Gerrard, who has paid considerable attention to 

 this subject, and has compared several of the specimens with 

 the authentic types contained in the Paris collection." The 

 work, however, bears internal evidence that Mr. Gray is respon- 

 sible for the letter-press. The arrangement is essentially that 

 of Miiller and ITenle's " Systematische Beschreibung ;" but the 

 families of those naturalists are regarded as simple tribes, only 

 three families being adopted, the Scylliadceor Scyllii of Miiller 

 and Henle, the Sqtialidce^ and the Squatinidce. The arrange- 

 ment also diiiers from the latest one of Miiller and Henle by the 

 retention of tlie genus. Pristiophorus in the "section" of the 

 Raii and the family of Prisiisidce. The characters of the 

 tribes and genera are translated from the great work of Miiller 

 and Ilenle, and the species are simply named and not described. 

 As the names of several of the genera have been changed, the 

 following sketch of the catalogue may be useful ; the names of 

 Miiller and Ilenle are inclosed in parentheses. 



Order Chondropterygii. 

 Sub-order II. Trematopnea. 

 Sect. I. Squali. 

 Fam. 1. ScYLLiAD.E. 



1. ScylHum. 2. Pristidurus. 3. HemiscylHum. 4. CliiloscyHium. 



5. Crossorbinus. G. Nebrius (iiw/».=iGinglymostoraa M. c& H.). 



6. Stegostoma. 

 Fam. 2, Squalid.e. 



I. Squaliana. 1. Squakis ''' Scoliodon **Trifflochis[\^:=Fhysodon 

 M. c& H.) ***Aprion ''•'***iri/poprion ^**** Carcharinus [=z 

 Prionodon). 2. Spliyroias (^Sphyrna). 

 DEC, 1861. 27 -^NN. Lyo. Nat. Hist. Vol. VII ' 



