Clare Inland Survey — Archiannelida and Votychaeta. 47 59 



lobe. This arrangement of the dorsal setae differs considerably from that 

 found in Pholoe minuta. In the latter species the long dorsal setae are not 

 collected into two lateral bunches, nor definitely distinguished from the 

 shorter median setae, and there is a gradual transition from the one kind 

 to the other. Moreover all the setae emerge on the upper side of the 

 dorsal lobe. 



The ventral lobe of the foot is thickly covered with papillae, which are 

 small and globular on the lateral and ventral regions, long and cylindrical 

 towards the tip of the foot (fig. 14 H). These long papillae form a fringe on 

 each side of the setae. The ventral cirrus is smooth and slender, with a few 

 globular papillae on its swollen base. The ventral lobe bears 8 compound 

 setae. In the 15th segment these setae (fig. 14 KJ have thicker stems, shorter 

 and thicker terminal pieces than in the 1st foot (fig. 14 i). The upper setae 

 in each foot are thicker than the lower ones. The end of the shaft is bevelled 

 and hispid, and has a series of spines on its upper margin. The terminal 

 piece is curved at the tip, and coarsely serrate along the edge. 



The 60th foot is similar in shape, with 7 ventral setae. The lateral fringe 

 of the dorsal lobe bears only 4 long papillae on each side. 



Mature specimens were found in October. 



The most remarkable character of this species is the presence of the large 

 facial tubercle. This structure is usually indistinct or absent in species 

 belonging to the family Aphroditidae, and is best marked in the sub-family 

 Hermioninae (family Aphroditidae of Mcintosh), and the genus Iphione. 

 Quatrefages (1865, vol. i, p. 187), however, in his generic diagnosis of the 

 genus Pholoe, states that a facial tubercle is present, but does not say in 

 which species it is found, and it appears to be absent in P. minuta and 

 P. synophthalmica. 



Other characters distinguishing this species from P. minuta are 

 (1) absence of papillae on the tentacular cirri, (2) more numerous papillae 

 on the feet and ventral surface, (3) papillae on the elytra shorter, and only 

 in one row, (4) the arrangement of the setae in the dorsal bundles, (5) shape 

 of the ventral setae, which have stronger teeth, and shorter tips in the 

 anterior bundles. 



From P. synophthalmica this species differs in the presence of the facial 

 tubercle, the absence of papillae on the tentacular cirri, the shape of the 

 anterior ventral setae, etc. From P. dorsipapillata Marenzeller, it is 

 distinguished by the absence of papillae on the dorsum, the structure of the 

 elytra and setae, etc. 



Habitat. — Blacksod Bay — Found on the shore on 4 occasions. Clew 

 Bay — Dredged in 9-11 fms., in Laminaria roots. 

 H2 



