86 



BUl^LETIN OF THE BUREAU OF FISHERIES. 



Some individuals retain the coloring of the young longer than others; in our material, those from the 

 tide pools assume the adult coloration sooner than those of equal size from greater depths. 



The type was secured with hand line at Agattu Island. Others were obtained at Agattu, Medni, 

 and Bering Islands, and at the following stations on Petrel Bank: 



List op Stations. 



BLENNIID/E. 

 GYMNOCLINUS, new genus. 



Body moderately elongate, compressed, naked. Teeth on jaws and vomer, none on palatines. 

 No lateral line. From i to 3 fleshy tubercles on median line of interorbital area and snout. Gill 

 membranes connected, free from the isthmus; branchiostegals 6. Dorsal fin of flexible spines 

 anteriorly, of stiff spines posteriorly; no anal spines; ventral jugular, consisting of a single ray, no 

 spine; pectorals large, rounded, more than half as long as head. Apparently belonging to the Brj/oj/emma 

 group of genera, but with no close relationships. 



Type Gymnodinus cristutaius, new species. 



'WTM^'^^ 



>i^^^^^^ 



Fig. 30. — Gymnodinus crislutatus. new species. Type. 



'A... 



Gynmoclinus cristulatus, new species. (Fig. 30.) 



Type 37 mm. long, from Nikolski, Bering Island. 



Head 25 hundredths of length to base of caudal; depth 19; eye 5.5; maxillary 11; snout 5.5; 

 pectoral 15. Dorsal lxi; anal 43; pectoral 14. 



Body compressed; head short; snout deep, abruptly decurved ; mouth oblique, maxillary reaching 

 vertical beyond posterior margin of pupil; a single series of widely spaced, conical teeth on jaws and 

 vomer, none on palatines; a fleshy papilla midway between eyes, its height equal to diameter of pupil, 

 preceded by one or two smaller ones. Nostril in a slender tube. 



Origin of dorsal above base of pectoral ; origin of anal nearer tip of snout than base of caudal by a 

 distance equal to the diameter of the eye; dorsal and anal joined to base of caudal; caudal slightly 

 rounded; pectoral large, rounded; ventrals of a single ray. Vent immediately in front of anal fin! 



Color light olive, pale on snout, lower half of head, and abdomen; dorsal with 11 vertical pale 

 bars, which extend a short distance on body; a series of 9 small pale spots along the middle of the sides, 



