. Breviora. 14 BREVIORA No. 374. Figure 4. Phenacostethus smithi Myers (1928), ventral view of pri- apium, specimen, MCZ 47055 (formalin). and also a smaller orange-yellow bar on the body next to the anal fin origin. As in Ph. smithi, there appears to be a one-to-one correspon- dence between the scale rows and the myotomes. The thin scales are extremely difficult to see in specimens under alcohol or water; and most specimens are missing many scales. I find in several specimens eight oblique scale rows between dorsal midline and anal fin origin, and six oblique scale rows between dorsal
. Breviora. 14 BREVIORA No. 374. Figure 4. Phenacostethus smithi Myers (1928), ventral view of pri- apium, specimen, MCZ 47055 (formalin). and also a smaller orange-yellow bar on the body next to the anal fin origin. As in Ph. smithi, there appears to be a one-to-one correspon- dence between the scale rows and the myotomes. The thin scales are extremely difficult to see in specimens under alcohol or water; and most specimens are missing many scales. I find in several specimens eight oblique scale rows between dorsal midline and anal fin origin, and six oblique scale rows between dorsal fin origin and anal base. Shape of jaw bones and disposition of teeth as in Ph. smithi. For fin and vertebral counts based on alizarin preparations of Ph. posthon see Table 1. Ph. posthon seems to have, on the aver- age, one less ray in the dorsal fin (verified by counts of unstained specimens) and one more vertebra than Ph. smithi. Right- and left-handedness in the priapiiim of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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