Annals of the South African Museum, Volume 21The Museum, 1927 - Natual history |
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Page 10
... developed the gills , by means of which the blood is aerated . In the terrestrial Vertebrates the gills have become functionless , though still present in the embryo , respiration being effected by the lungs . SUBPHYLUM 1. CEPHALOCHORDA ...
... developed the gills , by means of which the blood is aerated . In the terrestrial Vertebrates the gills have become functionless , though still present in the embryo , respiration being effected by the lungs . SUBPHYLUM 1. CEPHALOCHORDA ...
Page 11
... developed along both sides of body . Key to the South African species . 1. Total number of myotomes 74-75 2. Total number of myotomes 62-69 capense . bazarutense . Branchiostoma capense Gilch . The Cape Lancelet . 1902. Gilchrist A ...
... developed along both sides of body . Key to the South African species . 1. Total number of myotomes 74-75 2. Total number of myotomes 62-69 capense . bazarutense . Branchiostoma capense Gilch . The Cape Lancelet . 1902. Gilchrist A ...
Page 12
... developed as an enlargement of the anterior part of the central nervous system . A skull or “ cranium is developed around the brain , and a series of vertebrae form the backbone and give support to the 2 pairs of limbs ( usually present ) ...
... developed as an enlargement of the anterior part of the central nervous system . A skull or “ cranium is developed around the brain , and a series of vertebrae form the backbone and give support to the 2 pairs of limbs ( usually present ) ...
Page 13
... developed only on the tongue , which can be protruded and withdrawn . The teeth are horny and not calcified . The mouth is surrounded by several ten- tacles ( 4 pairs ) , and there is a single median nostril on the front margin of the ...
... developed only on the tongue , which can be protruded and withdrawn . The teeth are horny and not calcified . The mouth is surrounded by several ten- tacles ( 4 pairs ) , and there is a single median nostril on the front margin of the ...
Page 18
... developed . Though present in the Elasmobranchs , it is much more prominently developed in the Bony Fishes . SUBCLASS 1. ELASMOBRANCHII . Cartilaginous Fishes . Skeleton cartilaginous , or partially calcified , but without any bony ...
... developed . Though present in the Elasmobranchs , it is much more prominently developed in the Bony Fishes . SUBCLASS 1. ELASMOBRANCHII . Cartilaginous Fishes . Skeleton cartilaginous , or partially calcified , but without any bony ...
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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