Roport U. S. F. C. 1897. (To face page 136 ) 



Plate 39. 



to di^,,fafth™e7aSo^f hr^n patching viewed as au opaque object and somewhat obliquely from one side 

 O. Yo^gnshthivTd^^^ pff^^ h "^^^h • ^""^ hyomandibular arcbes, and position of pectoral fin. ^ ' 



^forward: cLK^^^^ ^'^^''''^ as a transparent object to show extension of segmental duct 



^nanToTth* llSk^r'vS'^^ ^^"^ ™"'''' enlarged, and viewed as an opaque object. Only a slight rem- 



^and rndimeVtan^air-Wadder'ah^ '?,f ", ""^f^^f ^"^ P^'"^'>' ^^ ^ transparent object; py pylorus 



already so far"5i^"e\;pLd^i"p|l:tTt^ooncS '''' '""""''^^ "^^ '''^''''^ ^^^'l' ^^e o^^c'^fla are 



