Annals of the South African Museum, Volume 21The Museum, 1927 - Natual history |
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Page 5
... sometimes included , but only where specifically stated . The depth of the body is the greatest distance from the back to the belly , sometimes immedi- ately behind the head , sometimes further posteriorly , exclusive of the fins . The ...
... sometimes included , but only where specifically stated . The depth of the body is the greatest distance from the back to the belly , sometimes immedi- ately behind the head , sometimes further posteriorly , exclusive of the fins . The ...
Page 24
... sometimes pale . Locality . - Natal coast , Delagoa Bay . Distribution . - Indian seas to Japan . * Carcharinus melanopterus ( Q. and G. ) . Black - finned Shark ; Black Shark ( Natal ) . 1878. Day , Fishes of India , p . 715 , pl ...
... sometimes pale . Locality . - Natal coast , Delagoa Bay . Distribution . - Indian seas to Japan . * Carcharinus melanopterus ( Q. and G. ) . Black - finned Shark ; Black Shark ( Natal ) . 1878. Day , Fishes of India , p . 715 , pl ...
Page 32
... LAMNA Cuv . ) 1810. Rafinesque , Caratteri Nuovi Gen. , p . 11 . Spiracles absent ( sometimes a minute pore ) . A pit at root of caudal , which has strongly developed lower lobe and lateral 32 Annals of the South African Museum .
... LAMNA Cuv . ) 1810. Rafinesque , Caratteri Nuovi Gen. , p . 11 . Spiracles absent ( sometimes a minute pore ) . A pit at root of caudal , which has strongly developed lower lobe and lateral 32 Annals of the South African Museum .
Page 33
... sometimes additional basal cusps ( Lamna ) , non - serrated , 3rd tooth on each side in upper jaw much smaller than its neighbours . Gill - slits very wide . Labial folds obsolete . The Porbeagles are extremely rapacious sharks , their ...
... sometimes additional basal cusps ( Lamna ) , non - serrated , 3rd tooth on each side in upper jaw much smaller than its neighbours . Gill - slits very wide . Labial folds obsolete . The Porbeagles are extremely rapacious sharks , their ...
Page 34
... sometimes mottled laterally around pectoral fins ; eye dark . Locality . - Cape and Natal seas . Distribution . - Cosmopolitan . This well - known and easily recognised shark feeds principally on the shoals of herring and mackerel ...
... sometimes mottled laterally around pectoral fins ; eye dark . Locality . - Cape and Natal seas . Distribution . - Cosmopolitan . This well - known and easily recognised shark feeds principally on the shoals of herring and mackerel ...
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Common terms and phrases
1st dorsal absent adult Agulhas Bank Air-bladder anal fins arch band Barbel Biol blackish Bleeker Branchiostegals Brit canines Cape caudal fin caudal peduncle Colour Colour.-Silvery compressed ctenoid Cuvier and Valenciennes cycloid dark Delagoa Bay Depth of body dorsal and anal dorsal fin Dorsal spines Durban Mus fathoms Fish genus Gilchrist and Thompson Gill Gill-membranes Gill-rakers gill-slits Günther hind margin Hist Ichthyol interorbital width Jordan Lacépède Lateral line length of body length of head Length.-Up Locality.-Natal coast Locality.-Off lower jaw margin of eye Maxilla Maxilla reaching mouth Natal nostril opercle palatine Photophores Plate Poiss posterior premaxilla preopercle preorbital Proc Pseudobranchiae Pyloric caeca Regan Scales scaly serrated silvery slightly snout soft dorsal South African Museum South African species specimens spinous dorsal spots Surv synonymy tail teeth U.S. Nat upper jaw vent vertical villiform vomer Zool