A treatise on zoology . primitive characters :there are a subocular shelf, ctenoid scales,four gills, paired and median fins with spines,and well-developed pleural ribs. The body-scales extend between or over the dermal raysof the median fins. They are probably moreclosely related to Sub-Tribe B than to anyother Perciformes. Family Chaetodontidae. The bodybecomes very compressed and deep, the mouthproduced forward, the face more vertical,and a very high supraoccipital crest is con-tinued at the sides into the pterotic crest ;it is enormously enlarged in Ejjhippus () ; the minute setifor
A treatise on zoology . primitive characters :there are a subocular shelf, ctenoid scales,four gills, paired and median fins with spines,and well-developed pleural ribs. The body-scales extend between or over the dermal raysof the median fins. They are probably moreclosely related to Sub-Tribe B than to anyother Perciformes. Family Chaetodontidae. The bodybecomes very compressed and deep, the mouthproduced forward, the face more vertical,and a very high supraoccipital crest is con-tinued at the sides into the pterotic crest ;it is enormously enlarged in Ejjhippus () ; the minute setiform teeth are set inbands. The opercular bones may be armedwith spines ; in Holocanthus there is a pro-of supraoccipital; c, interorbitai minent preopercular spine. septum; d, basis cranii. (After r<i i i n ^ /-A- ^ ^ .-.\ rr 7 ^7 Giinther.) Cliaefoaon, Art. (rig. 443); nolacantlius, Lac. ; Pomacanthus, Lac.; Ephii^pus, Cuv. ;Platax, C and V. (Fig. 444)—tropical seas ; Eocene, Europe. Chelmo,Cuv.; Parapsettus, Fig. 442. Skull of Ephippus faber, , enlargement of frontal, and h ^^s.:^
Size: 1127px × 2217px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectzoology
