626 



TELEOSTEI 



enclosed in a pearly covering deposited upon it by the oyster ; 

 a similar specimen is preserved in the British Museum. 



ITiG. 382. Fierasfer acus, penetrating into Holothnrians, f nat. size. (After Emery.) 



Sub-Order 7. Catosteomi. 



Air-bladder, if present, without open duct. Parietal bones, if 

 present, separated by the supraoccipital. Pectoral arch suspended 

 from the skull ; no mesocoracoid arch ; coracoid usually very 

 large. Ventral fins, if present, abdominal, or pelvis attached to 

 the coracoid bones. 



The mouth is small and bordered by the praemaxillaries or 

 by the praemaxillaries arid a small portion of the maxillaries. 

 The air-bladder is present, except in the Solenostomidae and 

 Pegasidae. 



Following the suggestions of Kner and Steindachner and 

 Cope to their logical conclusion, A. S. Woodward, in his valuable 

 catalogue of the Fossil Fishes in the British Museum, has 

 united the Lophobranchs of Cuvier with the Hemibranchs of 

 Cope, a course which seems fully justified, and has received 



