FISHES 133 



C. anncE Jordan and Sparks. Length 75 mm.; head 3.5; depth 5; color 

 Hght gray, somewhat mottled; rays of dorsal fin VII or VIII, 17 or 18; 

 anal 12; mouth very small; preopercle with i blunt spine and no others: 

 Colorado River basin; common. 



C. bendirei (Bean). Length 75 mm.; color dark brown, hghter on 

 the throat and belly; rays of dorsal fins VIII, 16; anal, 12; palatines 

 with teeth; preopercle with 4 spines: Columbia basin in Oregon and 

 Idaho. 



C. tenuis (Evermann and Meek). Length 75 mm. ; head 3.8; depth 7 ; 

 color dark above and pale beneath; under side of head speckled; rays of 

 dorsal fins VI-I, 1 7 ; anal 1 5 ; body very slender : Klamath Lakes, Oregon. 



C. cognatus Richardson. Head 3.5; depth 5; color olivaceous, 

 mottled; upper edge of spinous dorsal fin red in life; rays of dorsal fins 

 VIII, 16; anal 12: Great Lakes to New England and New York; West 

 Virginia; Alaska; common. 



2. Triglopsis Girard. Body and head slender; skin naked; lateral 

 Hne chain-like; teeth on vomer, but not on palatines; a small distinct 

 sHt behind the last gill; preopercular spines 4: i species. 



T. thompsoni Girard. Length 75 mm.; head 3; depth 6 color oliva- 

 ceous, with dark blotches; eyes very large; rays of dorsal fins VIII, 18; 

 anal 15; dorsal lins separate; the soft dorsal and the anal fins very large: 

 deep waters of the Great Lakes; not common. 



Order 17. Gobioidea. — Ventral fins thoracic, I, 4 or I, 5; pseudo- 

 branchiae present; dorsp,l fins separate or united; dorsal spines few and 

 weak; soft dorsal and anal long; caudal fin rounded: 2 families of marine 

 fishes, with a few fresh water representatives. 



Family Gobiidae. — Gobies. Body mostly elongate, naked or cov- 

 ered with ctenoid scales; ventral fins close together, usually united; no 

 lateral line; no pyloric caeca: 600 species, a very few in fresh water; 

 shore fishes in tropical regions. 



Dormitator Gill. Body scaled, short, robust; head scaled, broad, 

 blunt and flat; mouth small, obHque; scales large; fins large: i species. 



D. maculatus (Bloch). Length 600 mm.; head 3.2; depth 3; color 

 dark gray or brown with lighter spots; dorsal fins separate and with 

 parallel black bands; rays of dorsal fins VII-I, 8 or 9; anal I, 9 or 10; 

 scales 33: both coasts of America from North Carolina and Cape St. 

 Lucas to Brazil, in fresh and brackish water. 



