102 STYLARIOIDES SARSI. 



figs. 3h). The tip consists of a gradually diminished flattened process ending a well- 

 marked hook, the whole structure being more conspicuous than the slender, tapering 

 dorsal bristles. The dorsal bristles continue to the posterior end, and though short they 

 are usually better seen on the last third than in the region in front (middle third), since 

 these appear to be brittle and easily abraded. The long hooks just described occur through- 

 out a considerable region anteriorly, but they gradually pass into simple hooks (Plate 

 CIV, figs. 3 c— 3 e) posteriorly, the tip being distinctly curved and the shaft crossed by 

 incomplete transverse articulations in its free part. The bristles in this species are 

 remarkably free from parasitic growths. 



Posteriorly the body tapers gently to a bluntly-conical end (Plate XCIV, fig. 1). 



Reproduction. — Specimens captured by Canon Norman in Norway in the summer, 

 probably in July, 1879, have numerous ova in the body-cavity anteriorly, each with a 

 pointed process, as if it had been developed on a stalk. In some the ova were laro-e, 

 rounded, and free in the ccelomic space, in which a few gregarines were also present. 



5. Stylartoides Sarsi, 1 Mcintosh, 1908. Plate XCVI, fig. 5 ; Plate CIV, figs. 5—5 b— 



bristles and hook. 



Specific Characters. — Somewhat like S. plumosa, but with a shorter anterior region, 

 fewer segments, more velvety surface, stiffer dorsal bristles ; ventral of the third series 

 forming long, stiff, straight bristles; hooks of the fourth pair are short, broad, flattened 

 knives with a curve at the tip. This form of hook continues a short distance, and passes 

 into a series of longer, rigid, lever-like spines posteriorly. 



Synonym. 

 ] 908. Stylartoides Sarsi, Mcintosh. Ann. Nat. Hist., ser. 8, vol. ii ; p. 536. 



Habitat— Dredged in the 'Porcupine' Expedition of 1870, off Cape Sagres, in 45 

 fathoms, July 28th, amidst what was called a southern fauna. 



A form (Plate XCVI, fig. 5) of fair size, and somewhat resembling 8. plumosa in 

 general aspect, yet it is essentially different. So far as the two fragments, apparently of 

 the same animal, reveal, the shape is generally that of the common species, the entire 

 surface being closely villous from clavate papilla3, which are longest on the first three 

 segments, and especially the first, but no sand-grains are visible. The general colour is a 

 khaki-brown, and the segments are more than twenty in number, probably thirty. The 

 papillaB are smaller on the ventral surface, but, as on the dorsum, they are most con- 

 spicuous on the anterior segments. The anterior aperture for the emission of the oral 

 organs is triangular, and resembles in position that of S. plumosa. 



The first foot has very long, pale golden, iridescent bristles, which in the preparation 

 pass forward and inward, so that they cross each other toward the tip, which shows only 

 a trace of a curve. They and the next two groups are studded, both on the foot at the 

 base as well as on the bristles, with Loxosomas, which have buds at various stages pro- 

 jecting from the parents. In structure the dorsal bristles (Plate CIV, figs. 5 and 5 a) 



1 Named in honour of Prof. Michael Sars, the distinguished investigator of the Fauna of the 

 northern seas. 



