1865.] GILL — FISHES OF THE BAY OF FUNDY. 263 



ORDER LOPHOBRANCHII. 

 SYNGNATHID^E (Bon.) 

 Syngnathin^e (Bon.) 



Head and body much elongated and straight. Males with a 

 caudal egg-pouch open throughout. 



Genus Syngnathus Linn. 



Body heptagonal, slender, with the breast-shields rugose, and 

 the jaws sub-equal. 



Syngnathus PecManus Storer. (Dawson.) 



Syngnathus Peckianus, Storer, Mem. Am. Ac. viii, 412, pi. 33, fig. 3. 



GANOID EI. 



ORDER CHONDROSTEI. 



Sturonid^e (Rich.) 



Genus Acipenserince (Bon.) 



Both pseudobranchiae and spiracula developed. 



Acipenser oxyrhinchus, Storer, Mem. Am. Ac. viii, 43 1, pi. 35, fig. 4. 



ORDERS OF ELASMOBRANCHT. 



Branchial apertures lateral. SQUALL 



Branchial apertures inferior. Rai^e. 



FAMILIES OF SQUALL 



I. Anal fin present. 



A. Branchial apertures entirely in front of pectorals. Caudal 

 nearly lunate. LamniDjE. 



AA Branchial aperture behind above pectoral 



B. Caudal with its upper lobe extremely long. Nictitating 

 membrane obsolete. Alopecidje. 



BB. Caudal with it upper lobe moderately elongate. 

 Nictitating membrane of eyes present. 



Galeorhinld^. 

 II. Ana', fin absent. 



Doisals with spines in front. Spinacid^e. 



Dorsals without spines. Scymnid^e. 



LAMNID^E Mull, et Henle. 

 Lamnin^e Gill. 

 Branchial aperture moderate. Teeth well developed. 



