222 



ENDEAVOUR SCIENTIFIC RESULTS. 



The left unpaired (11 J.) ha.s () teeth, the two proxhnal are 

 quite small and less pointed than the rest. This jjlate lies 

 alongside the large dental plate, as in some other species. 



The fourth left is hoodlike, with 5 teeth ; the base of the 

 hood is dark brown. 



The fifth is triangular, with a single recurved white tooth. 



On the right side, the dental plate (11.) has 5 teeth, de- 

 creasing in size from the most anterior ; the hoodlike fourth 

 has 8 or 9 teeth, of which the one at each end of the series 

 is very little developed; the fifth plate is like that on the 

 left side. All the teeth are tipped with white. 



In four individuals examined I find that these numbers are 

 constant. 



SOME COMPARATIXE MEASUREMENTS OF E. bassensis. 

 (Cephalic fragments.) 



Nos. 1-4, 6, 7. — East coast Flinders Island ; 5, Entrance to Oyster Bay. 



Remarks. — Certain ditierences exist between my specimens 

 and the fragmentary type. The foot figured by M'Intosh 

 (PI. xxxix., fig. 16), shows no jDiominent chsetophoral sac, the 

 chffitee seem to spring from the general contour of the body. 

 Surely this must be an error of the artist, as it is totally luilike 

 the general character of an Eunicid parapodium. But the 

 most noticeable difference is in the size of the gill, which has 

 nine filaments. Unfortunately MTntosh gives us no idea 

 of the size of the worm, nor does he say whether the foot 

 figured came from the anterior end of the fragment or not. 

 His fragment was two inches in length, and if one examines 

 the present material at this distance from the anus, the gill 

 has but six filaments. We must then presume that his 

 specimen was portion of a larger worm. 



At any rate, none of the other species obtained from this 

 neighbourhood or elsewhere agrees so closely with ours. 



