86 PHYLLODOCE GRCENLANDICA. 



his figure of the elongated dorsal cirri anteriorly — a feature which may have been due to 

 imperfect preservation. He makes the remark under P. Paretti that the appendages of 

 the bristles are very short, and for this reason he emphasises the distinction between it 

 and the former. It may be doubted, however, whether the structure of the bristles was 

 studied with sufficient minuteness, and the figures bear out this view. 



Claparede (1870) places much reliance on the relative length of the tentacular cirri 

 as distinguishing his P. Pancerina from P. Paretti, the former having them very long 

 and thick. It is doubtful, however, if much weight can be placed on this point. The 

 tentacular cirri arise from the same transverse line as in P. Rathkii of Grube, whereas 

 Claparede thought such did not exist in the P. Paretti of Edwards and Delle Chiaje, nor 

 in the P. Kinbergi, De Quatrefages, a species closely approaching P. Pancerina. He 

 thought the bristles differed from those of P. Paretti in having the terminal piece 

 undulated and somewhat longer — distinctions which may be found in the same specimen. 



Marion and Bobretzky (1875) consider that Phyllodoce Pancerina (Claparede) is the 

 same as P. Paretti, and they separate it from P. lamelligera (Johnston). Claparede's form 

 may be a well-marked southern variety, with swollen tentacles and enlarged lamellae. 

 Delle Chiaje does not show a yellow border to the dorsal cirri in his figure in the 

 6 Memoire,' but mentions it in his description. 1 



The Phyllodoce splendens 2 (De St. Joseph), which the author links closely to 

 P. Kinbergi (De Quatrefages), P. Paretti, De Blainville, and P. Pancerina (Claparede), 

 seems to be the same form. It agrees in colour, the small size and shape of the head, 

 and other features. He places the tentacular cirri thus : Two pairs on the buccal, the third 

 pair on the second segment, and the fourth on the third segment, with a rudiment of a foot 

 without a ventral cirrus. The dorsal cirri are cordate at the base, and the eggs green. 

 Fragments of Synapta inhserens occur in the stomach. He only found two young ones 

 (16 mm., 82 seg.; and 7 mm., 41 seg.). " Les soies ont la hampe tres renflee en avant," 

 and the terminal process is shorter than in P. Pancerina, and thus agrees with P. Paretti, 

 of which it is probably a variety. The author's P. papulosa 3 from Dinard, also comes 

 very near the present form. 



3. Phyllodoce gecenlandioa, (Ersted, 1843. Plate LVIII, fig. 5— head; Plate LXVIII, 

 figs. 4, 5, 6— feet ; Plate LXXVII, fig. 7— bristle. 



Specific characters. — Head somewhat ovate, cordate posteriorly ; two eyes, tentacles 

 short, tentacular cirri normal. Body of considerable length, four to eight inches ; greyish 

 green ;. segments short. Proboscis in extrusion with six rows of large tubercles 

 anteriorly, numerous rows of smaller conical papilla? posteriorly. Dorsal cirri much 

 developed superiorly, so as to be almost rectangular ; ventral cirri ovate-elliptical, and in 

 the middle segments turned upwards ((Ersted) ; setigerous process bifid, shafts of bristles 

 with enlarged spinigerous tips and a long serrated blade. 



1 p. 176. 



2 ' Ann. des Sc. Nat./ 7 e ser., torn, v, p. 278, pi. xi, fig. 138, 1888. 



3 Ibid., 8 e ser.,, t. v, p. 320, pi. xviii, figs. 117—120, 1898. 



