328 PROCEEDINGS OF THE NATIONAL MUSEITM vol. 83 



STLENGIS OSENSIS Jordan and Starks 



Stlengis osensis Jordan and Starks, Proc. U. S. Nat. Mus., vol. 27, p. 236, fig. 

 1, 1904; Bull. U. S. Fish Comm., vol. 22, p. 590, fig., 1902 (1904).— Jordan, 

 Tanaka, and Snyder, Journ. Coll. Sci. Imp. Univ. Tokyo, vol. 33, p. 255, 

 fig. 189, 1913. 



Diagnosis. — Orbit 3.0 in head. Pores of head large and promi- 

 nent, those of mandibular series simple. Dorsal VIII, 15; anal 14; 

 pectorals 20. Sides of body with 3 longitudinal bands of strongly 

 ctenoid scales; the dorsal band extends from level of sixth dorsal 

 spine to caudal base and contains 27 scales; the middle band, follow- 

 ing the lateral line, extends to just beyond end of second dorsal and 

 contains 27 scales; the ventral band extends from just anterior to 

 anal origin to caudal base and contains 24 to 25 scales. 



Unfortunately the values given in the type description for the fin 

 ray and scale counts are in error. The figure is correct with regard 

 to these structures. 



STLENGIS DISTOECHUS,2 new species 



Figure 26; Plate 34, A 



Diagnosis. — Orbit 2.6 (2.5-2.6) in head. Pores of head large 

 and prominent, those of mandibular series simple. Dorsal VIII 

 (VIII-IX), 16 (16-17); anal 11 (10-11); pectorals 17 (16-18). Sides 

 of body with 2 bands of ctenoid scales; the dorsal band extends from 

 level of fifth or sixth dorsal spine to near base of upper caudal rays 

 and contains 26 (23-28) scales; the band along lateral line extends to 

 caudal base and contains 36 (34-37) scales. 



Body sUghtly depressed anteriorly, slightly compressed posteriorly ; 

 distance from origin of first dorsal to pelvic base 2.1 (2.0-2.1) in 

 head; width at upper end of pectoral base 2.0 (1.9-2.0) in head. Least 

 depth of caudal peduncle 2.3 (2.2-2.4) in orbit. 



Head 2.9 (2.8-2.9) in standard length; snout short, 2.0 (1.9-2.1) in 

 orbit, forming an angle of 133° (129°-139°) with frontoparietal 

 region, of 67° (60°-72°) with chin. Maxillary extending slightly 

 beyond middle of pupil. Eye large, diameter of orbit 2.6 (2.5-2.6) in 

 head. Interorbital width about equal to width of suborbitals. 

 Upper preopercular spine with a simple or bifid tip and 3 or 4 re- 

 curved barbs along its upper margin. The variation in the tip of the 

 spine, together with the well-known facts of spine development in 

 other genera, leaves no doubt that the number of barbs is a function 

 of age. The three lower preopercular spines are all simple except 

 in one specimen, where the middle one is narrowly bifid on both sides. 

 Pores of head large, 3 prominent ones along dorsal border of suborbi- 

 tals between anterior margin of orbit and base of suborbital stay; 

 pores of mandibular series simple, without circlet of supernumerary 

 openings. 



• From iiffToixoi, two-rowed. 



