468 GONIADA EREMtTA. 



beneatli and external to the cirrus. At the seventieth foot the dorsal cirrus is now 

 double (Plate LXXV, fig. 12 6), a long spathulate lobe inferiorly and a lanceolate lobe 

 superiorly. A dorsal spine is also present, but there are no dorsal bristles. 



In the posterior feet the vertical diameter has considerably increased, and the dorsal 

 and ventral divisions are widely separated. The upper dorsal lobe is ovate and pointed 

 at the tip, the lower is somewhat lanceolate (Plate LXXV, fig. 12 c). The dorsal bristles 

 are simple and rather short, with a tapering tip slightly curved. A strong spine emerges 

 at the border of the lower lobe. The inferior division is the longer, has a setigerous 

 process with a strong spine, and a broad fan of compound bristles, the tips of which make 

 a gradational series, the longer tips being median, the shorter superior and inferior. It 

 has terminally a longer upper papilla or lobe (digit-like), and a pair of shorter lobes 

 inferiorly. The region is completed by the flattened, conical ventral cirrus, the tip of 

 which reaches the bases of terminal papillse above it. 



Fig. 89. — Lateral tooth of Goniada eremita, Aud. and EdAv. Enlarged. 



In their original description of this species from the Mediterranean, Audouin and 

 Edwards (1834) overlooked the toothed jaws and the denticles toward the tip of the 

 extruded proboscis, though they represented both in an allied species from New Holland. 

 The characters of the anterior as contrasted with the posterior feet also escaped them. 



De Quatrefages (1865) also omitted to notice the distal armature of the proboscis 

 in extrusion. He, however, observed the distinctions between the anterior and the 

 posterior feet, though he overlooked the dorsal bristles, which probably had been 



removed. 



A careful account of this form was given by Ehlers (1868). In his examples the 

 change in the dorsal division occurred at the sixty-third foot, somewhat more posterior 

 than in the present form. The tail has two slender cirri. He describes the great length 

 of the proboscis with its sixteen terminal papilla) , its pair of three-toothed jaws, and the 

 band of smaller denticles, but his figure of the latter represents them as too minute. 



