170 Mr. C. T. Eegan on tie Osteology and 



Gastrosteoids as Scorpsenoids in wliich the attachment of tlie 

 pelvic bones to the cleithra has been lost. On the other 

 liand, after making a stndy of the osteology of Pegasus and 

 Parapegasus I am unable to appreciate the supposed rela- 

 tionship to the Scleroparei, and I regard the Hjpostomides 

 as a distinct order. 



Recently Allis has issued a beaulifuUy illustrated memoir 

 on the cranial osteology of Scorpana, Alyoxoeephahis, Trigla, 

 Perifitedion, and Doctt/lopferus (' Ziologica,' Stuttgart, Ivii. 

 1909, pp. 1-219, pis. i.-viii.). Berg's memoir entitled 'Die 

 Cataphracti des Baikal-Sees,' publi.shed in 1907, includes an 

 excellent account, with figures, of the osteology of several 

 Cotlid genera and of Cowephorus. Starks has given a 

 complete description of the skeleton of Sebastolobus (Proc. 

 Calif. Acad. i. 1898, pp. 3tiJ-370, pis. xxii.-xxiv.). Garman 

 has monographed the Cyclopleridse (Mem. Mus. Com p. Zool. 

 xiv. 1892). Gill has paid particular attention to the mail- 

 cheeked fishes, and has supplemented an essay on the classi- 

 fication of the group (Froc. U.S. Nat. Mus. xi. 1888, 

 pp. 567-592) with papers dealing with particular genera or 

 families, viz.: Dactylopterus (Proc. U.S. Nat. j\Ius. xiii. 

 1890, pp. 213-248, pi. xix.), Cyclopteridje (/. c. pp. 361-376, 

 pis. xxviii.-xxx.), Hernitriplerus (j. c. pp. 377-380, pi. xxxi.), 

 and Gnathanacanthus (Proc. U.S. Nat. Mus. xiv. 1891, 

 p. 701) ; those on the Cyclopterids and Ilemitripierus include 

 good figures of the cranial osteology. 



In working out the classification I have had the advantage 

 of examining the skeleton of at least one genus in each 

 family, and when skeletons of other genera have not been at 

 hand I have usually been able to test characters o£ importance 

 on spirit-specimens. 



The following scheme indicates the limits and contents 

 of the 



Order SCLEROPAREI. 



Suborder 1. Scobp^noidea. 

 Division 1. Scorp^niformes. 

 Family 1. Scorpaenidae. 



Scorpcsjia, Sebastes, Pterois, Tcenianotna, Aphtus, 

 Glyptauchen, Centropogon, Tetraroge, Gymnapistus, 

 Prosopodasgs, Cocotropus, Erisjjhex. 



Family 2. Triglidae. 



Subfamily 1. Triglinse : Trigla, Lepidotrigla, Prio- 

 nottts, Pterygotrigla. 



Subfamily 2. Peristediontinae : Peristeth'on. 



