Annals of the South African Museum, Volume 21The Museum, 1927 - Natual history |
From inside the book
Results 1-5 of 100
Page 10
... present in the embryo , respiration being effected by the lungs . SUBPHYLUM 1. CEPHALOCHORDA . The Cephalochorda are Chordate animals in which the notochord extends the whole length of the body and of the head . Usually only the one ...
... present in the embryo , respiration being effected by the lungs . SUBPHYLUM 1. CEPHALOCHORDA . The Cephalochorda are Chordate animals in which the notochord extends the whole length of the body and of the head . Usually only the one ...
Page 12
... present . Length . - Up to 42 mm . Colour . Semi - transparent . Locality . Bazaruto Islands , Portuguese East ... present ) and to the body as a whole . A muscular heart is always present , and the blood is red . The Craniates are ...
... present . Length . - Up to 42 mm . Colour . Semi - transparent . Locality . Bazaruto Islands , Portuguese East ... present ) and to the body as a whole . A muscular heart is always present , and the blood is red . The Craniates are ...
Page 18
... present in front of the gill - openings . A pelvic girdle as well as a pectoral girdle is present . The tail , in all living forms , is heterocercal , i.e. asymmetrical , the upper lobe being more strongly developed than the lower ...
... present in front of the gill - openings . A pelvic girdle as well as a pectoral girdle is present . The tail , in all living forms , is heterocercal , i.e. asymmetrical , the upper lobe being more strongly developed than the lower ...
Page 20
... present ii . Nictitating membrane absent . a . Second dorsal much smaller than first B. Dorsal fins subequal . * Teeth large , awl - shaped ** Teeth small , numerous b . Oronasal grooves present 2. Dorsal fin - spines present II . Anal ...
... present ii . Nictitating membrane absent . a . Second dorsal much smaller than first B. Dorsal fins subequal . * Teeth large , awl - shaped ** Teeth small , numerous b . Oronasal grooves present 2. Dorsal fin - spines present II . Anal ...
Page 22
... present . Pit at root of caudal present or absent , caudal without lateral keels and with lower lobe well developed or obsolete . Nictitating membrane present . Spiracle minute or absent . Labial folds present . Nostrils not connected ...
... present . Pit at root of caudal present or absent , caudal without lateral keels and with lower lobe well developed or obsolete . Nictitating membrane present . Spiracle minute or absent . Labial folds present . Nostrils not connected ...
Other editions - View all
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