. The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa . Caudal deeply emarginate, crescentic. Caudal peduncle 3 times as long as deep. Scales 2 27 strongly denticulate, 38 — ; lat. i. —. Brown, darker on the snout and vertex ; a blackish opercular spot; fins length, 95 from a single specimen from Msambu. 81. Eretmodus cvanostictus.—Blegr. 1898. (Fig. p. 187. Upper.) Eight or 10 transverse series of teeth in each jaw, the crowns reddish of body equal to length of head, 3 times in
. The Tanganyika problem; an account of the researches undertaken concerning the existence of marine animals in Central Africa . Caudal deeply emarginate, crescentic. Caudal peduncle 3 times as long as deep. Scales 2 27 strongly denticulate, 38 — ; lat. i. —. Brown, darker on the snout and vertex ; a blackish opercular spot; fins length, 95 from a single specimen from Msambu. 81. Eretmodus cvanostictus.—Blegr. 1898. (Fig. p. 187. Upper.) Eight or 10 transverse series of teeth in each jaw, the crowns reddish of body equal to length of head, 3 times in total length. Irofile of snoutcurved ; length of snout l.^ to twice diameter of eye, which is 4i to 5 times in lengthof head, and a little less than interorbital width ; mouth extending to belownostril; cheeks and opercles naked. Gill-rakers short, 9 or 10 on lower part ofanterior arch. Dorsal 3-5 ; spines sulj-equal from the sixth, \\ lengthof head, a little shorter than soft rays Pectoral 4 length of head. Xcnlral reachingvent. Anal III. 6-7; third spine longest, a little longer than dorsals; soft rays. 14* [2 THE TANGANYIKA PROBLEM. about \ length of head. Caudal rounded. Caudal peduncle deejxT than long. X 22—2? Scales ^2-^; ; lat. i . Blackish brown, with scattered pale blue dots ; ^ -- II—12 6—9 ^ belly yellowish. Total length, 75 millim. Described from five specimens from Mbity Rocks and three from Kinyamkolo. The toothed portions of the pramaxillary and mandible are much developed indepth, in a manner suggestive of the Sparidic and Siaridd-, and the teeth areimplanted in sockets. The deep triangular groove for the reception of the pra-maxillaries extends to between the orbits, and the occipital crest is prolonged to it;the parietal crests are produced on the frontals ; the prceorbital is large, and thechain of suborbitals very slender. The pharyngeal teeth have long, slender shaftsand conical brown cusps. The ribs are attached to the back of
Size: 1140px × 2192px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectm, booksubjectzoology
