144 " ENDEAVOUR " SCIENTIFIC RESULTS. 



The parapodia are, with the exception of the anterior, of 

 equal length, about l-3rcl the width of the body. The propor- 

 tions of the length of a parapod to its height is about as 3 : 2. 

 The two anterior lips are long, narrow, and pointed, the 

 ventral shghtly longer than the dorsal (PI. xlvii., fig. 23). 

 The two posterior lips are separated by a distinct, rather deep, 

 incision ; they are rounded and much shorter than the 

 anterior lips. The ventral is rather longer and of less height 

 than the dorsal. 



The dorsal cirrus is nearly spherical, a little removed from 

 the foot up the side of the body, with a deep constriction 

 at its base. The ventral cirrus is conical, its tip reacliing as^ 

 far outward as the posterior lip. 



The chsetse are colourless, the acicula golden. 



The dorsal chfette are capilliform, about 9-10 in number,, 

 with upturned tips and a narrow denticulated and striated 

 flange. The ventrals are homogomph spinigers, 5 in the 

 supra-acicular and 8 in the sub-acicular bundle ; the appendix 

 has a narrow striated and denticulated flange on one or both 

 sides ; the edge seems to have a row of minute dots along it, 

 which, under high raagnification, are seen to be minute 

 prominences. 



The dorsals have the same ornamentation. 



The first two parapodia are without the dorsal cirrus ; the 

 three or fovn* anterior feet have both the posterior and anterior 

 lips pointed. The feet gradually increase in size till the 8th, 

 after which they remain uniform. 



The pharynx, in this specimen everted, is short and wide ; 

 its length is 5 mm., its breadth 4 mm. at the anterior end. 

 Its base overlaps the anterior feet. In a soft specimen the 

 everted pharynx has a length of 7 mm., a terminal breadth 

 of 3 mm., and resembles M'Intosh's figure of G. amboinensis. 



Its surface is covered with closely set, uniformly distributed- 

 long filamentous papillae, giving it a velvety appearance, 

 These papillae have a subterminal oval disc at one side of 

 the apex, which appears sucker-hke in that it is slightly 

 hollowed out (PI. xlvii., figs. 24-25). The apex of the papilla 

 carries a few stiff" sensory hairs. The subterminal oval disc 

 is known from the work of Gravier,i but neither in this paper 

 nor in that of Jourdan^ nor Oppenheim"^ are these terminal 

 hairs shown, though the sense cells and nerve fibres are 

 traced out. 



1. Gravier— Bull. Sci., xxxi., 1800, p. 422. 



2. Jourdan— Ann. Sci. Nat., Zool., (7), xiii., 1892. 



3. Oppenhcini — Proc. Anier. Acad. Arts and Sci., xxxvii., 1902, p. 553. 



