Annals of the South African Museum, Volume 21The Museum, 1927 - Natual history |
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Page 7
... separate dorsal fins the numbers are separated by a + , thus D VIII + 10 . D IX + 1.8 would mean that there are two separate dorsals , the first composed of 9 spines only , the second of 1 spine and 8 rays . In older works on fishes the ...
... separate dorsal fins the numbers are separated by a + , thus D VIII + 10 . D IX + 1.8 would mean that there are two separate dorsals , the first composed of 9 spines only , the second of 1 spine and 8 rays . In older works on fishes the ...
Page 9
... separate work , especially as the South African forms have not been adequately studied . PHYLUM CHORDATA . Subphylum 1. Cephalochorda " " 2. Craniata . Class 1. Cyclostomata " " 2. Pisces Subclass 1. Elasmobranchii Order 1. Plagiostomi ...
... separate work , especially as the South African forms have not been adequately studied . PHYLUM CHORDATA . Subphylum 1. Cephalochorda " " 2. Craniata . Class 1. Cyclostomata " " 2. Pisces Subclass 1. Elasmobranchii Order 1. Plagiostomi ...
Page 10
... separates the Vertebrates from the Invertebrates . A further distinguishing character is the possession of a series ... separate . A series of oblong swellings along one or both sides of the atrium represent the pockets in which the ova ...
... separates the Vertebrates from the Invertebrates . A further distinguishing character is the possession of a series ... separate . A series of oblong swellings along one or both sides of the atrium represent the pockets in which the ova ...
Page 15
South African Museum. These two genera are sometimes made the types of two separate families : Myxinidae and ... separately by a series of orifices along the sides , all the ducts from the gill pouches to the external openings being of ...
South African Museum. These two genera are sometimes made the types of two separate families : Myxinidae and ... separately by a series of orifices along the sides , all the ducts from the gill pouches to the external openings being of ...
Page 39
... separate ( subgenus Halaelurus ) . a . Length of base of anal more than its distance from caudal b . Length of base of anal less than its distance from caudal . edwardsi . regani . i . Short labial folds in both jaws ii . No labial ...
... separate ( subgenus Halaelurus ) . a . Length of base of anal more than its distance from caudal b . Length of base of anal less than its distance from caudal . edwardsi . regani . i . Short labial folds in both jaws ii . No labial ...
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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