Annals of the South African Museum, Volume 21The Museum, 1927 - Natual history |
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Page 5
... usually strongly convex between the eyes . The isthmus is the space on the chest between the two rami of the lower jaw and the gill - openings . The caudal peduncle is that part of the body between the hind end of the last dorsal fin ...
... usually strongly convex between the eyes . The isthmus is the space on the chest between the two rami of the lower jaw and the gill - openings . The caudal peduncle is that part of the body between the hind end of the last dorsal fin ...
Page 10
... Usually only the one family is recognised . Fam . BRANCHIOSTOMIDAE . Lancelets . 1922. Hubbs , Occ . Papers Mus . Zool . Michigan , No. 105 ( list of species ) . The Lancelet , or Amphioxus as it is usually designated in zoo- logical ...
... Usually only the one family is recognised . Fam . BRANCHIOSTOMIDAE . Lancelets . 1922. Hubbs , Occ . Papers Mus . Zool . Michigan , No. 105 ( list of species ) . The Lancelet , or Amphioxus as it is usually designated in zoo- logical ...
Page 12
... usually understood . They are distinguished by the presence of a " head " distinct from the body , in which a brain is developed as an enlargement of the anterior part of the central nervous system . A skull or “ cranium is developed ...
... usually understood . They are distinguished by the presence of a " head " distinct from the body , in which a brain is developed as an enlargement of the anterior part of the central nervous system . A skull or “ cranium is developed ...
Page 15
... Usually in rather deep water . Myxine capensis Regan . The Deep - water Hag - fish . 1913. Regan , Ann . Mag . Nat . Hist . , ( 8 ) , vol . xi , p . 398 ; and vol . xii , p . 229 . 1914. Thompson , Mar. Biol . Rep . , vol . ii , p . 133 ...
... Usually in rather deep water . Myxine capensis Regan . The Deep - water Hag - fish . 1913. Regan , Ann . Mag . Nat . Hist . , ( 8 ) , vol . xi , p . 398 ; and vol . xii , p . 229 . 1914. Thompson , Mar. Biol . Rep . , vol . ii , p . 133 ...
Page 22
... usually with a single large triangular cusp , usually without basal cusps ; or the teeth may be small , numerous , and obtuse , or with very indistinct cusps . Five gill - slits . A large family distributed all over the world , some ...
... usually with a single large triangular cusp , usually without basal cusps ; or the teeth may be small , numerous , and obtuse , or with very indistinct cusps . Five gill - slits . A large family distributed all over the world , some ...
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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