230 SUB-CLASS (AND ORDER) TELEOSTEI. 



A. Tail not prehensile, generally with caudal fin. Pipe-fishes. 

 Siphonostoma Kaup ; S. typhle L. coasts of Eur. Syngnathiis 

 Art. ; S. acus L. greater pipe-fish. Doryichthys. Nerophis Kaup., 

 eggs glued to abdomen, no folds of skin ; N. aequoreus L. ocean 

 pipe-fish, N. ophidian L. straight-nosed pipe-fish, JV. lumbrici- 

 formis Yarr. little pipe-fish common on British coasts ; Protocampus, 

 Ichthyocampus, Nannocampus, Urocamptis, Leptoichthys, Coelonotus, 

 Stigmatophora. 



B. Tail prehensile, without caudal fin. Sea-horses. Oastrotokeus, 

 Solenognathus . Phyllopteryx Swainson, provided with prominent 

 spines on the edge of the body, some with cutaneous filaments 

 giving them a close resemblance to the seaweed which they frequent ; 

 Hippocampus Raf. sea-horse (Fig. 126), H. antiquorum Leach, Brit, 

 seas, etc. 



D. HYPOSTOMIDES. 



With one Fam. 48. Pegasidae, Body entirely covered with bony 

 plates ; preoperculum and symplectic absent ; the pectorals are broad 



FIG. 127. Exocoetus rondeictii (after Cuv. and Vah., irom Glaus). 



and horizontal ; and the upper part of the snout is produced into a pro- 

 cess ; without air-bladder and pseudo branch. Small fishes living in 

 sandy shoal-places near the coast. Indian Ocean, Chinese and Australian 

 coasts. Pegasus draco and volans. 



Suborder 8. PERCESOCES (MUGILIFORMES). 



Air-bladder, if present, without open duct. Parietals separated 

 by supraoccipital. Pectoral arch suspended from skull, no 

 mesocoracoid. Pelvic fins, if present, often with 1 spine and 5 

 rays ; pelvic bones not attached to shoulder girdle. Connects 

 the Haplomi with the Acanthopterygii. 



Fam. 49. Scombresocidae. Body covered with scales ; a series 



