Titlebook: Smiths’ Sea Fishes; Margaret M. Smith,Phillip C. Heemstra Book 1986Latest edition J.L.B. Smith Institute of Ichthyology, Grahamstown 1986

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The effect of fishingught in their fortnightly competitions. The anglers realised that the elf were in need of protection, and asked for some sort of control on the catching of these fish. A commission of inquiry called the Smith Committee was appointed in 1980 to look into the matter. The Committee recommended that cat

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Scientific nomenclature and classification make a unique species name that can be used only for that particular species. The species ., our common yellowbelly rockcod (Family Serranidae), was described and named by the famous Swedish biologist Carl von Linné (Linnaeus) in 1758. The . stipulates that the starting point for zoological names i

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Key to Superclasses, Classes and Subclasses true jaws derived from gill arches. They also lack paired fins (pectoral fins are developed in some), true teeth and vertebrae; the gills are carried on the inner edge of the gill arches, which are fused to the neurocranium. The internal skeleton is entirely cartilaginous, but many of the fossil ag

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Class Chondrichthyesed by calcification. In this group fertilisation is internal and accomplished by means of the paired intromittent organs at the inner edge of the pelvic fins of males. These organs, misnamed “claspers”, are actually used to transfer sperm into the oviducts of the female during copulation. Although a

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