. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Stromateoid Fishes • Haedrich 85. 20 mm Figure 28. Psenes pellucidus, drawing of a 130-mm specimen by Margaret Bradbury. of anterior border of the eye. Eye moderate to large. Adipose tissue around eye mod- erately developed. Nostrils near tip of trun- cate snout, small, the anterior one round, the posterior a slit. Maxillary ending under anterior portion of the eye. Premaxillary not protractile. Lacrimal bone almost com- pletely covering upper jaw when mouth is closed, ventral border of maxillary remain- ing exposed.
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Stromateoid Fishes • Haedrich 85. 20 mm Figure 28. Psenes pellucidus, drawing of a 130-mm specimen by Margaret Bradbury. of anterior border of the eye. Eye moderate to large. Adipose tissue around eye mod- erately developed. Nostrils near tip of trun- cate snout, small, the anterior one round, the posterior a slit. Maxillary ending under anterior portion of the eye. Premaxillary not protractile. Lacrimal bone almost com- pletely covering upper jaw when mouth is closed, ventral border of maxillary remain- ing exposed. Supramaxillary absent. Teeth in both jaws uniserial, pointed; teeth in upper jaw small, slightly recurved, spaced; teeth in lower jaw larger, may be long and bladelike with small cusps, close-set. A few small recurved teeth in a patch on the head of the vomer and in a single series on each palatine and on the basibranchials. Opercle and preopercle thin, scaled, mar- gins very finely denticulate or entire; oper- cle with two weak, hardh" defined, flat spines; angle of preopercle rounded, pro- jecting backward very slightly. Gill-rakers slender, a little shorter than the filaments, toothed on inner edge, moderately spaced, 14 to 19 on lower limb of first arch; some- times a iew rudimentary rakers under the long pseudobranch. Six branchiostegal rays, four on the ceratohyal, two on the epihyal. Scapula not prominent. Vertebrae 13 to 15 + 18 to 23 = 31 to 38, or 15 + 26 or 27 = 41 or 42. Stomach a simple sac; intestine very long. Pyloric caeca numerous, in a dendritic mass. Color in preservative bro\\'n to yellowish, some species with a conspicuous, dark, blotched or longitudinally striped pattern. Median fins and pelvics often darker than the body. Region at bases of median fins translucent in P. pcUucidus. Inside of mouth light brown, gill cavity usually darker. Peritoneum dark or light. Natural history. The young of Psenes are fairly common in the surface layers on the hig
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
