. Bulletin of the British Museum (Natural History). Zoology . CLUPEOID FISHES OF THE GUI ANAS 145. Fig. 54. AncJioa lyolepis (Evermann & Marsh). From Hildebrand 1964. Description. Based on 6 Tobago fishes, 49*3-56-4 mm (batch b) and six Trinidad fishes, 51-8-54-1 mm (batch d). (11) 12-13, D iii (11) 12, P i 11-13, V i 6, A iii 18 (), 19 (8), 20 (1), 19 (), 20 (1), 21 (7), 22 (2), 23 (1). In percentages of standard length : body depth 17-4-20-5, head length 28-7-30-9 ; snout length 5-9-6-9, eye diameter 6-3-7-1, cheek length 11-5-12-3 (6 fishes), len
. Bulletin of the British Museum (Natural History). Zoology . CLUPEOID FISHES OF THE GUI ANAS 145. Fig. 54. AncJioa lyolepis (Evermann & Marsh). From Hildebrand 1964. Description. Based on 6 Tobago fishes, 49*3-56-4 mm (batch b) and six Trinidad fishes, 51-8-54-1 mm (batch d). (11) 12-13, D iii (11) 12, P i 11-13, V i 6, A iii 18 (), 19 (8), 20 (1), 19 (), 20 (1), 21 (7), 22 (2), 23 (1). In percentages of standard length : body depth 17-4-20-5, head length 28-7-30-9 ; snout length 5-9-6-9, eye diameter 6-3-7-1, cheek length 11-5-12-3 (6 fishes), length of upper jaw 27-0-29-3, length of lower jaw 20-0-21-7 ; pectoral fin length 14-6- 15-8, axillary scale 8-7-10-4 (6 fishes), pelvic fin length 9-3-10-1, axillary scale 6'5~7'9 (6 fishes), length of anal base 17-8-20-7 ; pre-dorsal distance 50-5-57-0, pre-pelvic distance 47-4-49-6, pre-anal distance 65-0-68-8. Body fairly compressed, its width 1-75-2-00 times in its depth, the latter o-66- o-8o head length ; snout to occiput 1-75 in normal head measurement; belly rather acutely rounded, with a single (pelvic) scute. Snout prominent, slightly less than eye diameter ; eye covered by thin adipose tissue. Maxilla with tapering tip (upper profile rounded, lower straight) projecting 0-50-0-75 pupil diameter beyond 2nd supra-maxilla and almost reaching to gill cover, projecting just beyond articu- lation of lower jaw ; lower edge of maxilla with a single series of conical teeth, evenly spaced and increasing slightly in length posteriorly, the longest about 0-3 mm (at 67-8 mm ) ; pre-maxillae with similar but much smaller teeth ; 1st (anterior) supra-maxilla slender, plate-like, equal to eye diameter, 2nd (posterior) supra-maxilla with spatulate expanded portion about three-quarters eye diameter and about two-thirds depth of maxilla at that point. Lower jaw slender, its greatest depth 5-5 times in its length ; edge of jaw with teeth finer and more close- set than those in upper j
Size: 2826px × 885px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll
