728 GEOLOGICAL SURVEY OF NEW JERSEY. 



by New Jersey authorities into Greenwood Lake, 1871. This 

 and the following have lost in size, from lack of fresh stock for 

 interbreeding, according to the belief of the fishermen. 



M. dolomiei, Lac. (Bodianus achigan, Grystes salmoides, fasciatus, punctu- 

 latus, obscurus, &c.) Small-mouthed Black Bass. 



Head large, but mouth not as large as in preceding ; scales on 

 cheek small, seventeen rows ; young golden green, with bronze 

 luster ; spots or vertical bars on sides, but no longitudinal stripe ; 

 three bands on cheeks ; adults dead green ; scales, 74 X 17. Cool, 

 clear and rapid streams. Introduced by authority of State of 

 New York into Greenwood Lake, 1866. 



Family PERCIDJE. 



(Etheostomatidee.) 

 Perches. 



Body elongate, terete or compressed, covered with small, adherent 

 ctenoid scales ; two dorsals, the first spiny ; many characters in com- 

 mon with the foregoing family, but body more slender ; anal spines 

 one or two ; pseudobranchise small or none ; skull bones not cavernous. 



BOLBOSOMA, De K. 



(Etheostoma. Estrella, &c.) 

 B. olmstedi, Stor. (tessellatum, maculaticeps, &c.) Tessellated Darter. 



Body slender, little compressed, not translucent ; head small, 

 pointed ; cheeks and opercles scaly ; scales large ; breast naked ; 

 fins high ; color olivaceous, tessellated above, sides with blotches 

 and zigzag markings ; fins speckled or barred ; head not speckled, 

 dusky in males. Dorsal spines, 9 ; soft rays, 14 ; anal, 9 ; 

 lateral-line scales, 50 ; length, 3| inches. Breast closely scaled in 

 var. atromaculatum. 



" This is the most numerous of the described species of 

 ' darters.' No stream appears to be too small for them, and 

 many specimens have been found by the writer in the ' belly ' of 

 shad-nets, tangled in the vegetation and trash drawn from the 

 bottoms of our rivers." 



