blennudae: salariinae — schxh^tz and chapman 355 



blackish; anal fin dusky, sometimes with narrow pale streaks; caudal 

 fin dark brown ; side of head sometimes with irregular pale markings. 

 Ecology. — This species was found, but not abundantly, in high 

 tidal pools or ponds or along the ocean reef where strong wave action 

 predomiuated and where there were plenty of crevices in which to 

 hide. It seemed to prefer the pools and solutions channels exposed 

 along the high tidal zone. 



ISTIBLENNIUS CYANOSTIGMA (Bleeker) 



Plate 117,E 



Salarias cyanostigma Bleeker, Verb. Bataviaasch Gen., vol. 22, pp. 5, 7, 18, 

 1849 (type locality, Pagatang, Soenda-Molukschen Archipelago). 



SPECIMENS STUDIED 



Guam: 5 lots. 111 specimens, 25 to 73 mm. in standard length. 

 Rota Island: 83 specimens, 22 to 74 mm, 

 Saipan: 2 specimens, 52 and 63 mm. 



Description. — Dorsal rays XIII,19 or 20; anal 11,20 or 21; pectoral 

 14, with 4 or 5 lower ones thickened; branched caudal 5+4; pel vies 

 1,3; orbital cirrus single over each eye; no nuchal cirrus; nasal cirri 

 2 or 3. 



Head 4.0 to 4.8; greatest depth 4.8 to 6.4; longest pectoral ray 

 4.4 to 5.5; snout tip to anus 2.0 to 2.4; anal fin base 2.3; all in stan dard 

 length. Eye 3.0 to 4.4; snout 3.2 to 3.5; postorbital length of head 

 1.4 to 1.5; greatest depth of body 1.2 to 1.3; least depth 2.4 to 2.5; 

 longest pectoral ray 1.2 to 1.3; longest dorsal spine 1.7 to 2.0; all in 

 length of head. Fleshy interorbital space 3.0 to 3.3 in eye. 



Orbital tentacle single, slender, tapering to a point, its length about 

 equal to eye diameter; basal part of orbital tentacle notably broader 

 than thick; no nuchal cirrus; nasal cirri very short; snout profile 

 with a backward slant of about 10 to 20 degrees from the vertical; 

 edges of both upper and lower lips smooth; lateral line arched over 

 pectoral fin and ending near midlengthwise axis of body a little in 

 front of a vertical line through anus; vertical line through dorsal origin 

 passes through pelvic bases; dorsal fin with deep notch over last 

 dorsal spine; a membrane attaching last dorsal ray with upper edge 

 of base of caudal fin; anal origin opposite base of next to last dorsal 

 spine; last anal ray without posterior membrane, or free from caudal 

 peduncle posteriorly; pectoral fins not reaching to point opposite 

 anus; anal spines small, in females mostly embedded; first anal rays 

 on adult males not notably swollen; no posterior canines on lower 

 jaw; teeth fine, numerous, movable, of equal size in both jaws; pos- 

 terior margin of caudal fin rounded ; cephalic crest very well developed 

 on adult males, its height nearly equal to eye diameter, in females 

 this crest is equal in height to pupil diameter. 



