260 



"ENDEAVOUR" SCIENTIFIC RESULTS. 



head, and the form of the vertical fin-rays are 

 undoubtedly connected with the habit of burrowing in 

 the sand and mud. 



B 



\ 



E F G H 



Fig. 9. Lower pharyngeals of (A) Pelotretis flavilatus, (B) 

 Azygopus pinnifasciatus, (C) Ammotretis rostratus, (D) 

 Rhombosolea leporina, (E) Colistium nudipinnis, (F) Peltor- 

 hamphus nov<c-zealandia\ (G) Rhombosolea plebeia, (H) 

 Rhombosolea tapirina. 



Subfamily Rhombosolcince. Eyes on the right side, 

 except in reversed examples. Dorsal fin extending for- 

 ward on snout above nasal organ of blind side, or begin- 

 ning behind it; pelvic fins asymmetrical, that of the 

 ocular side median, elongate, extending forward to the 

 urohyal, supported by a cartilaginous plate in advance of 

 the cleithra, that of the blind side, if present, small, short- 

 based. No pectoral radials, the rays inserted on the 

 hypocoracoid ; hypocoracoids narrowed forward below. 

 Parapophyses of praecaudal vertebrae not united. Den- 

 tition more developed on blind side. Gill-membranes 

 united. Lateral line developed on both sides of body. 

 No pyloric appendages. 



