. Bulletin of the British Museum (Natural History) Geology Supplement. FOSSIL AND RECENT 165 ep1-2 un2. h1-2 Fig. 83. Albula vulpes (Linnaeus). Caudal skeleton in left lateral view. Arrows indicate upper and lower principal fin-rays. Composite of several specimens. supraneurals. Each is sigmoid in shape, with the anterior ones considerably stouter than the posterior members of the series. Epineural intermuscular bones are borne by the neural arches throughout most of the abdominal and caudal regions. Epipleurals are found in the posterior abdominal region and grade posteriorly into a ventral s
. Bulletin of the British Museum (Natural History) Geology Supplement. FOSSIL AND RECENT 165 ep1-2 un2. h1-2 Fig. 83. Albula vulpes (Linnaeus). Caudal skeleton in left lateral view. Arrows indicate upper and lower principal fin-rays. Composite of several specimens. supraneurals. Each is sigmoid in shape, with the anterior ones considerably stouter than the posterior members of the series. Epineural intermuscular bones are borne by the neural arches throughout most of the abdominal and caudal regions. Epipleurals are found in the posterior abdominal region and grade posteriorly into a ventral series found throughout the caudal region. Squamation. Lateral line scale counts vary considerably. Specimens from both coasts of Central America give counts ranging from 71-77. Hildebrand (1963 : 134), who based his counts on specimens from the western North Atlantic, records a range of 65-67. It may be mentioned here that an Aden specimen ( ) also differs from the western Atlantic and eastern Pacific specimens in having 19 dorsal fin-rays. Hildebrand (1963) observed that only occasionally do Atlantic specimens show such a high count. Regrettably the dorsal fin of a Seychelles speci- men was broken and accurate counts could not be made. The branchiostegal ray count also varies with respect to geographical distribution (McAllister 1968 : 37) being higher in fishes from India and the Indo-Australian Archipelago. These biometrical differences may justify the recognition of a second Recent species. Returning to squamation, the transverse count immediately anterior to the dorsal fin is eight above and nine below the lateral line row, excluding a median row of small. 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 British Museum (Natural History). London : BM(NH)
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