442 MARPHYSA SANGUINEA. 



right angles to the shaft, and a smaller hook on the crown. The commencement of the 

 wing is indicated by a constriction in front. 



In front the ventral cirri are bulbous inferiorly — with a conical tip, but posteriorly 

 they are more elongate. The foot, indeed, in the posterior region of the body is some- 

 what more prominent, the spines are proportionally stronger, and the bristles more 

 slender and longer. 



Pourtales gave no tentacular cirri in his original description, but such appears to have 

 been due to a misapprehension. He found it inhabiting "large deformed, paper-like 

 tubes, with lateral openings irregularly placed, though in general alternate, bordered by 

 laciniate and fimbriate flaps." He described the branclme as five- to seven-lobed, and 

 stated that they began on the seventh or ninth ring. 



Miss Buchanan (1893) was right in pointing out the close resemblance of her 

 Eunice jpMlocorallia to E. floridana of Pourtales and Ehlers, the differences mentioned, 

 however, being only variations. 



Marenzeller's account (1893) is both minute and careful. He figures a calcareous 

 tube with terminal and lateral openings attached to Lophohelia prolifera, and he also found 

 it on Lophohelia ocalata in the Museum at Vienna. 



Roule (1896) does not allude to Miss Buchanan's species, and considers that E. 

 amphihelise most nearly approaches E. fasciata. He mentions that a note about this 

 form was first published by Filhol in " La Vie au fond des mers," ' Bibliotheque de la 

 Nature' (Paris, Masson). 



Genus LXXI. — Marphysa, Be Quatrefages, 1865. 



Head bilobed or rounded, with massive palpi. No tentacular cirri. Body typical, 

 terminating posteriorly in two cirri. Maxillse as in Eunice, but with a tendency to 

 elongation of the posterior processes. An azygos plate on the left. Foot with a dorsal 

 and a ventral cirrus. Knife-shaped bristles superiorly, compound falcate inferiorly. 

 Strong bifid hooks occur in the ventral region posteriorly. 



Ehlers (1868) characterized the genus as having five tentacles and a pair of massive 

 palpi. No tentacular cirri on the second of the two footless segments. Foot with a 

 dorsal and a ventral cirrus, dorsally with simple knife-shaped bristles, and ventrally with 

 compound bristles. Branchiae simple or with a short stem from which project filaments 

 more or less elongate. Four anal cirri. Upper jaw with teeth and fang; an additional 

 plate in the left row of teeth. 



1. Marphysa sanguinea, Montagu, 1807. Plate LIV, fig. 2 ; Plate LXIII, figs. 1 and 1 a 

 —teeth; Plate LXV, fig. 14— foot; Plate LXXIV, figs. 8 and 8 a— feet ; Plate 

 LXXXIII, figs. 5-5 b— bristles. 



Specific Characters. — Head deeply bilobed, flattened, with five dull yellow and rather 

 long tentacles, which are slightly wrinkled. Eyes normal in position. Body 18 ins. to 2 ft. 

 long, rounded in extension, flattened in contraction, terminating posteriorly in two cirri. 

 Colour ash-grey or greenish brown, duskier in front, paler posteriorly, with fine irides- 



