126 Dircclor s Annual Report. 



the axis which take on more or less the form of half bands from 

 the back to the axis of the body. Most of the scales of the body 

 have a small central dot of pearly white. There is a black band 

 vertically down from the lower margin of the eye to the isthmus. 

 Fins are all dusky. Three specimens, length 1.50 inches. Guam, 

 July I, 1900. Hab. Marianas. 



Gknus PBRIOPHTHALMUS Bloch & Schneider. 

 269. Periophthalmus koelreuteri (Pall.). Maching. 



Head 3.50; depth 2 into head; eye 4.20 into head; D. xv, 12; 

 A. II. Scales 90. Eyes large and elevated. Anterior profile of 

 head very abrupt. Body elongate, sub-cylindrical anteriorly, com- 

 pressed behind. Teeth: About 23 conical pointed teeth in each 

 jaw. Fins : Lower margin of caudal obliquely truncate. The 

 spines of anterior dorsal fin very flexible. Pecftoral with its basal 

 portion muscular and free. \^entrals short, connected on their 

 basal third. Color in spirits: Body olive brown; head may have 

 numerous small dots of lighter color. Spinous dorsal dusky, tipped 

 with white, and with a rather wide and distinct sub-terminal band 

 of black. Soft dorsal broadly tipped with white, with a sub- 

 terminal black band, below w^hich is a narrow irregular line of 

 white, the basal third of the fin being more or less white-dotted. 

 Caudal and pe(5torals dusky. Ventrals white below, dusky above. 

 Anal white. Four specimens, length 4-5 inches. Guam, June 14, 

 1900. Hab. Coasts of India, Andamans, Malay Archipelago, 

 Marianas. These lung fishes are very abundant, and when fright- 

 ened usually hop out of the water and take to land for safety. 



Family BLBNNIID^.— Blennies. 



Genus SAI^ARIAS Cuvier. 



270. Salarias periophthalmus Cuv. & ^'al. 



Head 4.66; depth 5.33; eye 3.50; interorbital 2 into eye; 

 D. XII, 20; A. 21; C. 15. No scales. Maxilla reaches to below 

 hind margin of eye. Body elongate, cylindrical anteriorly. Snout 

 blunt. Gill openings wide. A simple tentacle about half the 

 length of eye above the orbit, and a fringed one at the nostrils. 

 A row of small movable teeth in each jaw. Fins: Dorsal fin not 

 continuous on to the caudal. Caudal is almost square; the lower 

 rays, however, are a little the longest. Color in spirits: Yellowish 

 white with about six pairs of slightly darker cross bands down the 

 sides. A short oblique blue line just back of and below the eye. 

 A few^ small dusky spots on side of head. Two rows of dark- 

 margined ovate blue spots down the sides of body. Fins: Yellowish 



