288 



ENDEAVOtm SCIENTIFIC RESULTS. 



Pteropallial cartilage"^ (PI. Ixxxii., figs. 7-8) broadly U- 

 shaped, posterior in position, its pointed horns extending 

 past the base of but not into the fins ; fins muscles large,, 

 broadly attached at the base to the tough, ensheathing 

 membrane of the cartilage, the latter at this region showing 

 a vertical thickening, then a rapid tapering, the outer surface 

 here abruptly flattened and even slightly excavated at the 

 point of expansion ; a groove, broad and shallow at first, but 

 gradually narrowing and deepening posteriorly, extends 

 around the entire periphery of. the cartilage between the two 

 flattened areas (PI. Ixxxii., fig. 8). 



T?/pe.— Specimen E3628 [S.S.B. 464], in the collection of 

 the Australian Museum, Sydney. A paratype [S.S.B. 465] 

 has been retained by the writer. 



Type Locality.— 350-4:50 fathoms, long. 129° 28' E., Great 

 Australian Bight ('' Endeavour ") ; one specimen. 



Recorded Distribution. — 150-350 fathoms. Great Australian 

 Bight, off coasts of Sovith and Western Australia ("Endea- 

 voiir"). 



Material Examined.- 



TABLE XXVIII. 



* This term is probably here used for the first time. It is the equivalent 

 of the " dorsal cartilage " or " Riickenknorpel " of various authors, and 

 the " Flossenstiitze " of Meyer. 



