P0IATH7ETA. '265 



The insertion of the four pairs of tentacular cirri is the same as in Ph. madeirensis, 

 namely, on each side : 



Segment I., one tentacular cirrus ; 

 ,, IT., two tentacular cirri ; 

 III., one tentacular cirrus and a cirrus ventralis foliaceus. 



Tlu 1 first appearance presented is that of two cirri in the first segment, but closer 

 examination showed that this appearance is deceptive. The longest is the dorsal 

 cirrus of the second segment, stretching back over eleven segments. 



Phyllodoce macrolepidota, Schmarda Plate III., figs. 70 and 71. 



Schmarda, 'Neue Wirbellose Thiere,' ii., 1861, p. 83, Taf. xxix., fig. 229. 

 Phyllodoce tenuissima, Grube, 'Ann. Semp.,' 1878, p. 95. 



Locality : Galle Habour, on oyster cage. One specimen. 



Body very long and slender, 200 millims., with a width of 3 millims. in front, 

 over the setae ; more than 350 segments. The proboscis is only half extruded, and 

 this portion is inflated and soft ; it carries six longitudinal rows of broad, flattened, 

 arcuate, dark-coloured papillae on each side in front of the head-region, 8 to 10 

 papillae in a row, and, in addition, a median dorsal row of six papillae. The general 

 arrangement of the papillae and the presence of the median row are features which 

 characterise Ph. madeirensis, Langerhans, of which this may be an Oriental repre- 

 sentative, but it has nearly three times the length and about twice as many segments 

 as in the type-species of Langerhans. There are 17 setae in a parapodium 

 (Plate III., fig. 70) ; they do not offer any striking character (Plate III., fig. 71). 

 The head is about as long as it is broad, with rather large eyes in the centre of 

 the posterior cephalic convexity on each side ; it is acutely notched behind, but the 

 specimen does not show a nuchal papilla. There are two rather short, stout, subulate 

 anal cirri. 



Phyllodoce sancti-josephi, Gravier Plate III., figs. 72 and 73. 



(Iravier, "Ann. Polychetes de la Mer Rouge," 'Arch. Mus. Paris (4 ser.), ii., 1900, p. 196. 

 Station V., off Chilaw Paar, Gulf of Manaar, 11 fathoms. Two sj)ecimens. 

 These worms differ from the type in the shape of the head and in the apparent 

 absence of an occipital papilla. The widening of the head is correlated with the 

 extrusion of the proboscis, and the occlusion of the papilla may be due to the same 

 cause. One of the specimens has a length of 55 millims. and a total width in front 

 of 2 millims. 



The proboscis in its general consistency and in the presence of a posterior rugose 

 portion resembles that of Ph. foliosojMpillata, but the papillae, of which there are 

 six rows on each side, extend over the rugose region in front of the head (Plate III., 

 fig. 72). In the second specimen the proboscis shows six prominent angulations in 

 front of the rugose portion. 



2 M 



