File:Marine biological report for the year ended and the half year ending (1914) (14778467362).jpg

Identifier: marinebiological21914cape (find matches)
Title: Marine biological report for the year ended ... and the half year ending ..
Year: 1913 (1910s)
Authors:
Subjects: Marine biology
Publisher: Cape Town : Cape Times Ltd., Govt. printers
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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twisting about tosecure a better view that this behaviour was not accidental.It was at first thought that it was for the purpose of procuringany parasites that might be on the Klip-fish, but none wereobserved and, although the Stumpnose often approached towithin an inch or so of the Klip-fish, it never attempted toseize it or any parasites that might have been present. This 99 behaviour was very striking, especially when two Stumpnosewith their large staring eyes under a high forehead were thusoccupied. The KHp-fish apparently were not put out by thisattention, but lay perfectly still. Occasionally a Red-stumpnose was procured in the trawlwith an abnormally-protruding forehead, projecting far beyondthe eyes. It has been shown in the case of some fresh waterfishes that this is due to an accumulation of reserve fattymatter, and this is so in the Red-stumpnose, as shown in theaccompanying figure. The fish is known amongst Cape fisher-men as the Red-stumpnose, or Rooi Stumpneus. At Knysna
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Red Stumpnose (Chrysofhrys gibbiccps, C. & V.). it appears to be called the Michael or Michiel for a reason that is not quite obvious. The eggs are small (-88 82 mm.) and floating. The White Steenbras (Pagellus lithognathus, C. & V.) This is a fish provided also with crushing teeth, and it appearsto find its food in a similar locality to that of the Red-stump-nose, but in a different way, and in mud instead of sand. Theyhave been observed in the same attitude as the Red-stumpnose,the tail directed upwards and the head downwards. In thisposition they grub round in the mud for what they find, a habitfor which the shape of the head region is admirably adapted ;they have long pig-like snouts (at Mossel Bay the fish is calledthe Vark-bek, or Pig-mouth), the lips are somewhat pro-truding and may act as sensory organs. I am told thatnear Port Elizabeth they are sometimes shot in this position onshallow mud banks. In the aquarium the fish does not ex-hibit any specially interesting ha

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