532 
CAPTAIN E. W. SHANN ON 
THE STUDY OF NATURAL GROUPS OF- FISHES: 
List of Types. 
ELASMOBRANCHII . - 
OSTEICHTHYES 
Selachii 
Holocephali 
Dipnoi 
Chondrostei . 
Polypterini . 
Scyllium canicula. 
Galeus canis. 
• Acanthias vulgaris. 
Rhina squatina. 
Raia batis. 
j Chimsera monstrosa. 
\ Callorhynchus antarcticus. 
Lepidosiren paradoxa. 
Accipenser rubicundus. 
Polypterus bichir. 
j Ammodytes lanceolatus. 
Motella mustella. 
Zeus faber. 
Periophthalmus koelreuteri. 
Cottus scorpius. 
Trigla gurnardus. 
Blennius pholis. 
Pholis gunnellus. 
Zoarces viviparus. 
Lophius piscatorius. 
Teleostomi 
Teleostei . 
Note. — The above types were all actually dissected, and the list does not include 
a still wider range of forms which I originally intended to investigate. 
Each of the above groups will be taken under the following heads : — 
1. Shoulder Girdle. 
(1) A Description of the Lateral Muscle. 
(2) The Posterior Muscles : 
(a) Latero-dorsal. 
(b) Latero-ventral. 
(c) Mesio-ventral. 
(3) The Anterior Muscles : 
(a) Connections with the Skull (or with Lateralis Muscle). 
(b) Connections with the Visceral Arches. 
2. Pectoral Fin. 
(1) Adductor (dorsal or inner). 
(2) Abductor (ventral or outer). 
