PROCLYMENE MULLERI. 307 



the commencement of the ventral streak between them. Glands occur at the feet in all 

 the anterior segments, and dorsally and ventrally in segments 5 to 8 ; the anterior 

 bristled segments with spines. Hooks long, slightly curved, with long necks from which 

 the main fang comes off at more than a right angle. Grular bristles arising from cheeks 

 at base of the great fang, and spreading upward and outward as a broad fan. Anterior 

 bristles slender, with narrow wings and smooth points ; posterior bristles with short, 

 smooth points. Tube free, straight. 



1. Proclymene Mulleri, Sars, 1851. Plate XCIX, figs. 2 — 2 c — head and anal cone; 

 Plate OIX, figs. 3—3 d— bristles and hook ; Plate CX, fig. 2— hook. 



Specific Characters. — Cephalic plate sloped from behind downward and forward, 

 ending in front in a central conical process with a flap on each side. A short narrow 

 keel passes backward from the central process, but does not reach the middle of the 

 plate. Short and deep nuchal grooves on each side of the keel, curving outward 

 anteriorly, and being lost within the margin of the plate, which is thick, little extended, 

 and slightly crenate. Body rounded dorsally, slightly flattened ventrally, as well as 

 marked by a median groove. Nineteen bristled segments, and five posterior without 

 bristles. The anal funnel has two long cirri ventrally, the rest of the margin with small 

 cirri (twenty-six, Arwidsson ; fifteen to twenty-three, Sars). 



The proboscis is much wrinkled, but it appears to be comparatively smooth. The 

 feet are at the anterior part of bristled segments 1 to 9, but from the eleventh 

 backward are at the posterior border. The bristles are of two kinds — a powerful series 

 with strong, straight, golden shafts and slightly curved tapering tips with distinct wings, 

 and a slender series having tapered tips and just an indication of wings. The typical 

 hook has a long, slightly curved shaft, which dilates from the base to the shoulder, the 

 long neck being narrowest in the middle and having a knob on the throat below the great 

 fang which comes off at more than a right angle and has about five teeth on the crown 

 above it. The gular bristles spring from the cheeks at the base of the main fang and 

 extend obliquely upward and forward on each side. Segmental organs in segments 6 to 8, 

 with openings in the ninth bristled segment (Arwidsson). 



Synonyms. 



lleri, Sars. Nyt Mag. f. Naturvid., vol. vi, p. 201. 

 idem. Ibid., vol. vii, p. 390. 



idem. Fauna Lit. Norveg., ii, p. 13, Tab. 1, figs. 1—7. 

 idem. Christ. Yid.-Selsk. Forhandl. (sep. copy), pp. 21, 91. 

 Danielssen. Nyt Mag. f. Naturvid., vol. xi, p. 54. 

 Sars. Ibid., vol. xi, p. 256. 

 De Quatrefages. Annel., t. ii, pp. 240, 657. 

 Malmgren. Annul. Polych., p. 100. 



Malm. Vet.-o.-Vitt. Samhalets i. Goteborg Handl., vol. xiv, fig. 6. 

 Ehlers. Zeitschr. f. wiss. Zool., Bd. xxv, pp. 26, 63. 

 Tauber. Annul. Danica, p. 124. 



1851. 

 1853. 



Clymene Mill 



1856. 

 1861. 





)> 



a )> 



1865. 





1867. 



1874. 



Praxilla ,, 

 a a 



1875. 



jy ?, 



1879. 



a )> 



