466 GONIADA BREMITA. 



At the fiftieth foot (Plate LXXV, fig. 12 a) is a rather elongated slightly tapered 

 dorsal lobe, which appears to be homologous with a cirrus. Then the dorsal bristles with 

 their supporting spine occur above the large lanceolate lamella beneath. Inferiorly is the 

 rounded setigerous process of the region with its spine, and two groups of bristles, whilst 

 two long conical papilla project distally. At the ventral edge is a conical cirrus, which 

 does not project so far as the former. 



The foot remains of similar structure till near the tip of the tail, the lobes somewhat 

 increasing in length, as also do the bristles. The bristles of the ventral lobe considerably 

 exceed the others, their very long terminal pieces projecting far outward. In the caudal 

 region the lower division shows superiorly three lobes, an upper and under and a smaller 

 median, with the ventral inferiorly. 



The structure of the feet just detailed is observed in examples from the Outer Haaf, 

 Skerries, Shetland, from St. Andrews, Norway, and Canada. It is therefore the least 

 complex, both anteriorly and posteriorly. A tendency to the enlargement of the lobe 

 beneath the dorsal cirrus exists in females with large ova from Canada. Considerable 

 variety in regard to the length and breadth of the various lobes of the foot is observed. 



The other type is that represented by examples from Cape Finisterre and Cape 

 Sagres, in which the anterior feet have five processes, viz., a dorsal and a ventral cirrus, 

 the former being near the base of the foot, a long and large posterior lobe, and two smaller 

 anterior. The dorsal lobe is long and narrow, and has a slight constriction at its base. 

 In this type the posterior feet have broadly lanceolate dorsal lamellae and three long 

 digit-like papillae inferiorly — above the elongate ventral cirrus, as exemplified in the 

 following species. 



The dorsal bristles (Plate LXXXV, fig. 1) are translucent, with straight shafts, the 

 tip having a slight bend and dilatation, then being finely tapered distally. The ventral 

 bristles (Plate LXXXV, figs. 1 a and 1 a') have long shafts, slightly curved toward the 

 end. From the articulation the long, slender terminal piece tapers to a fine point. The 

 tips of the posterior bristles, especially the central series in the fan, attain a much greater 

 length. 



Reproduction. — Some of those procured off the S.W. of Ireland had large ova in July. 



Bhlers (1868) characterizes the proboscis as having small cordate papillae, with a 

 row of seven to nine arrow-shaped jaw-plates on each side, and with twenty terminal 

 papillae, two- to eight-toothed chief jaws, three ventral points, and four double points 

 (paragnathi). 



The Goniada Alcoclciana of Dr. Carrington 1 appears to be a variety of this species, 

 though, at first sight, the shape of the body leans to Glycinde. 



2. Goniada eeemita, Audouin and M. Edwards, 1834. 



Specific Characters.— -Head like that of G. maculata, with four short tentacles at the 

 tip, and consisting of seven rings. Body elongated, four to seven inches in length and of 

 300 segments, rounded dorsally and slightly flattened ventrally, where a median groove 



1 c Annel. of Southport/ 1865, p. 6. 



