136 MAGALIA PERARMATA. 



Genus XLIII. — Magalia, Marion and Bobretzky, 1875. 



Cephalic lobe bearing four eyes, two palpi (jointed), and two tentacles. Buccal region 

 with three pairs of tentacular cirri on each side. Proboscis armed with a stylet and two 

 maxillse. Feet uniramous. 



1. Magalia perarmata, Marion and Bobretzky, 1875. Plate LIX, fig. 1 — head, and 2 — tail; 

 Plate LXV, fig. 10— proboscis ; Plate LXIX, fig. 18— foot; Plate LXXVIII, figs. 8 

 and 8a — bristles. 



Specific Characters. — Head somewhat quadrangular, eyes rather large, close together 

 on each side about the middle ; anterior pair with lenses. Tentacles comparatively long, 

 smooth, fixed over the palpi, which are bi-articulate. Buccal region under the head ; six 

 pairs of articulated tentacular cirri, the dorsal of the second pair longest. Each has a 

 basal spine. Body 7 — 8 mm. in length, slightly tapered anteriorly and posteriorly; 

 segments 31 — 32. Anal cirri long and articulated. Colour, yellowish with a brown 

 touch at each dorsal cirrus, and similar touches on the head and buccal region. Dorsal 

 surface minutely striated transversely. Proboscis with a crown of papillae with barbed 

 palpocils, and the adjoining surface (in extrusion) has long hair-like papillas. A 

 symmetrical pair of jaws, and a median tooth. Intestine sacculated. Foot uniramous, 

 dorsal cirrus long, and with a spine in ceratophore ; conical setigerous region with two 

 spines; bristles slender, translucent, with long terminal pieces, especially superiorly, 

 the tip minutely hooked and with a secondary process beneath. Ventral cirrus subulate. 



Synonyms. 



1875. Magalia jperarmata, Marion and Bobretzky. Ann. Sc. Nat., 6 e ser., t. ii, pi. vi, f. 16 a — 11 



and pi. vii, f. 16. 

 1904. „ „ Allen. Jonrn. M. B. A., n.s., vol. vii, p. 220. 



Habitat. — Not uncommon in dredgings from Queen's Ground, Asia Shore, and 

 Millbay Channel, Plymouth (Allen). 



Under stones and in prairies of Posidonia, and in the coralline region, Marseilles 

 (Marion and Bobretzky). 



Head (Plate LIX, fig. 1) somewhat quadrangular, bearing four eyes of con- 

 siderable size situated near each other towards the middle of the region. The anterior 

 pair have lenses. The tentacles are comparatively long, smooth, and are attached over 

 the palpi which are bi-articulate. The buccal region lies entirely under the head, and 

 the six pairs of articulated tentacular cirri are usually directed forward, the dorsal of the 

 second pair being the longest, though it does not exceed the first dorsal cirrus. Bach 

 has a spine at its base. 



Body 7 — 8 mm. in length (Marion and Bobretzky), slightly tapered anteriorly and 

 more so posteriorly. Setigerous segments 31 or 32. The anal segment carries two 

 long articulated cirri (Plate LIX, fig. 2). 



Colour yellowish, with a brown touch at the base of each dorsal cirrus, and similar 



