. Bulletin. Natural history; Natuurlijke historie. 80 PEABODY MUSEUM BULLETIN 43. Fig. 32. S. fundus. Dorsal ridge scale series of S. fundus, holotype YPM 8926. Scale = 1 cm. The caudal peduncle is deeper anteriorly, and its maximum depth relative to standard length is greater than that of either S. greenwoodi or S. decoratus. In all individuals, lateral line scales number 32, fewer than any other species in the S. tenmceps group. There are 7-8 scale rows to the pelvic fins, 17 rows anterior to the anal fin, and 19 rows to the dorsal fin. Between the lateral line and the dorsal fin there are 9
. Bulletin. Natural history; Natuurlijke historie. 80 PEABODY MUSEUM BULLETIN 43. Fig. 32. S. fundus. Dorsal ridge scale series of S. fundus, holotype YPM 8926. Scale = 1 cm. The caudal peduncle is deeper anteriorly, and its maximum depth relative to standard length is greater than that of either S. greenwoodi or S. decoratus. In all individuals, lateral line scales number 32, fewer than any other species in the S. tenmceps group. There are 7-8 scale rows to the pelvic fins, 17 rows anterior to the anal fin, and 19 rows to the dorsal fin. Between the lateral line and the dorsal fin there are 9 scales; between the lateral line and the anal fin there are 8. As in some other semionotids (Olsen and McCune ms), the pattern of intercalated scale rows is not the same on both sides of the fish. For example, in YPM 8927, there are 9 on one side of the fish and 6 on the other. In addition, the holotype shows the rare instance of intercalated rows ventral to the lateral line. The scales along the ventral and dorsal midline of the caudal peduncle are enlarged. Flank scales are largest in the central anterior flank region and become smaller dorsally, ventrally, and caudally. The dorsal and anal fins are fringed with about 7-8 fulcra, the first three being basal fulcra and two more lying against the unsegmented portion of the first lepidotrichium. There are about 13 lepidotrichia in the dorsal fin and 10 in the anal fin. The caudal fin consists of 16 lepidotrichia, split equally in number between dorsal and ventral. The pectoral fin consists of 3-4 lepidotrichia, fringed with about 5 fulcra. The best skull is found on YPM 8927, and it does not differ from other species in the group in any significant respect. Table 29. Summary of morphometric data for Semionotusfundus. MAXCD* = MAXCD x 100/DFCD. MAXCD** = MAXCD x 100/AFCD. All other variables expressed as % SL, for SL = to cm. Variable N Mean Standard Minimum Maximum deviation value value DPTH 3 HD
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