Family GASTEROSTEIDJE. 



12. Gasterosteus aculeatus Liiin. Two-spined Stickle-back. 



Gasterosteus hiaculeatus Storer, Hist. Fish. Mass., 1867, p. 40, pi. viii, 

 figs. 2, 3; Putnam, Proc. Essex Institute, i, 1855, p. 148. A resident 

 species associated with those which follow. 



13. Gasterosteus aculeatus, sub-species, trachurus. Gaste- 

 rosteus Wheatlandi Putnam, Proc. Essex Inst., v, 1867, p. 4; and in 

 Storer, Hist. Fish. Mass., 1867, p. 278. Specimens of this form taken 

 at Nahant, April 15, 1859, by R. H. Wheatland, M. D., are distinguished 

 by (1) absence of scales on the posterior part of the body, there being 

 six or eight on the anterior part, in front of the second dorsal spine ; 

 (2) the uncarinated tail; (*) its small size; and (4) its "short and 

 deep" appearance. None of these characters are of specific value in 

 this genus, the range of individual variation in form and squamation 

 being very wide. 



14. Gasterosteus pungitius Linn. Many-spined Stickleback. 

 Gasterosteus DeKayi Putnam, Proc. Essex Inst., i, 1855, p. 148; Storer, 

 Hist. Fish. Mass., 1867, p. 43, pi. viii, fig. 5. Pygosteus occidentalis 

 Brevoort, in Gill's Catalogue of the Fishes of the Eastern Coast of 

 North America, 1861, p. 16. A resident species, associated with the 

 preceding and following species, but less abundant. The Essex 

 Institute Museum has specimens two and a half inches long from 

 Salem Mill Pond collected by F. W. Putnam. 



15. Apeltes quadracus {Mitchill) Brevoort. Fouu-spined Stic- 

 kleback. Gasterosteus quadracus Putnam, Proc. Essex Inst., 1855, p. 

 148; Storer, Hist. Fish. Mass., 1867, p. 41, pi. viii, fig. 4. A resident 

 species frequenting grassy bays and brackish water near the mouths 

 of streams. Many specimens from Salem and vicinity in the museum 

 of the Essex Institute. 



Order TE LEO C EPH ALT. 



Sub-order HETEROSOMATA. 

 Family SOLEID^. 



16. Solea vulgaris Linn. English Sole. Solea vulgaris Giin- 

 ther. Catalogue of the Fishes in the British Museum, iv, 1862, p. 463. 

 Two individuals of this species were set free in Massachusetts Bay 

 in 1877, by the U. S. Commissioner of Fisheries. 



17. Achirus lineatus Cuv. American Sole. Achirus mollis 

 Storer, Hist. Fish. Mass., 1867, p. 206, pi. xxxii, fig. 1. Storer records 

 the capture of two specimens of this species in 1847, in Charles River, 

 near Boston, and of a single specimen in 1860, at Nahant, which 



