Report of a Missio)i to (iitaiii. 119 



inconspicuous. Back compressed into a ridge. Bones of the upper 

 and lower jaw in the form of a beak, with cutting edge. A median 

 suture present. Fins: Longest dorsal ray equal to longest anal ray, 



2 into head; longest ray of caudal 3 into length of fish; the space 

 between the hind margin of dorsal and the base of caudal 4 into 

 length. Color in spirits: Above, a sepia brown covered with blue 

 spots with black edges ; these spots thicker and smaller than 

 pupil, on the posterior half; on the sides of head the spots are 

 as large or larger than the pupil ; several short radiating blue 

 lines about eye; three or four across interorbital space. Older 

 specimens have blue lines over the snout and on sides of the mouth. 

 Under parts 3-ellowish white with a median bkie line on belh' to 

 anal in larger specimens. A black spot, a little larger than eye, 

 covering the base of dorsal. Petlorals, anal and dorsal fins yellow- 

 ish white. Caudal dusky yellow with numerous blue lines and 

 dots. Six specimens, 1.25-3 inches in length, were taken at Agaiia, 

 Guam, inside the coral reef, July 12, 1900. These fish are usuall}' 

 found in pairs swimming about the coral reef; it is even difficult to 

 frighten them so the two will separate, and when this is accom- 

 plished thev seem to invariably join the same partner again. Hab. 

 Polynesia, Marianas. 



250. Tetrodon reticularis Bl. 



}'o/nig-: Head 2.50; eye 3.50; caudal rays 4 into length of fish 

 and equal to distance from caudal to anterior base of dorsal; pec- 

 torals 2 into head; small spicules all over except at base of caudal; 

 interorbital 3.50 into head. Color: Back, head and cheeks brown, 

 with scattered blue spots. Two blue concentric lines below eye. 

 Base of pectorals black with one or two concentric bluish rings. 

 Belly yellowish white with about 1 8 longitudinal brown lines about 

 three times as wide as the interspaces. Caudal dusk}-. Pecftorals, 

 dorsal and anal yellowish. One specimen, a voung, 1.50 inches in 

 length, was the only representative of this species secured. Agana, 

 Guam, July 12, 1900. //ad. Western Pacific, Marianas. 



251. Tetrodon immaculatus Bl. 



Yomig: Head 2.33; eye 3.50 into head; length of caudal ray 



3 into head; pedl orals 3; interorbital 3 into head. Color in spirits: 

 Browniish above wdth about 8 oblique narrow black lines extending 

 up and back from vicinity of pectorals to caudal and dorsal; below 

 yellowish white, unstreaked. Caudal dusky, with black upper and 

 lower margins. Peclorals, anal and dorsal white. One specimen, 

 length 1.50 inches, taken at Agaiia, Guam, July 12, 1900. //ab, 

 Polynesia, Marianas. 



252. Tetrodon stellatus Bl. 



Young: Head 2.50; eye 3; interorbital 4; caudal rays 3.50 

 into length; pe(5lorals 3. Color: Almost a lamp-black above, un- 



