376 APOMATUS AMPULLIFERUS. 
collar and alar membrane, it passes as a continuous fold from side to side. Branchiz reddish, 
rather soft and thick, of moderate length, often coiled and doubled ; seven filaments on each 
side, one on the right having at its blunt extremity a short pedicle for the soft, globular 
operculum, which often shows branching tubules inside it. Pinne also rather soft, of moderate 
length and continued to the end of the filament, which has a short terminal process. Orna- 
mented with purple spots (Carus). Body rather stout, widest anteriorly, and it tapers only 
a little to the flattened tail. Anterior region of seven bristled segments, and with a broad 
alar membrane over the bristles. Dorsally is a long conical elevation, with the apex forward, 
the surface posteriorly being convex, whilst the ventral surface is little flattened, but grooved 
in the median line from end to end. Anterior bristles of two kinds, directed upward and 
backward, and forming broad pencils of simple bristles, with straight shafts, a curvature 
backward at the commencement of the finely tapered tip, which has either a broad or a 
narrow wing. First bristles dorsal in position, and are directed forward and inward, agreeing 
in structure with those behind, viz. with curved tips, and broad or narrow wings. Posterior 
bristles confined to the caudal region, and they have rather short shafts and broad sickle- 
shaped serrated and striated terminal blades. Those next the tail have long slender tips, 
less curved. Anterior hooks, which commence on the third setigerous segment, avicular, 
with a rounded crown, a long and minutely serrated anterior edge, ending inferiorly in a 
modified (blunt) main fang, with a gulf beneath and a rounded prow. ‘The posterior outline 
has a deep indentation and the body of the hook is striated. Tube white, more or 
less curved or coiled, with a smoothly rounded aperture, whilst dorsally is a flat ridge 
between two slight grooves—running from end to end. It is usually fixed to stones. 
SYNONYMS. 
1844, Apomatus ampulliferus, Philippi. Arch. f. Naturges., Bd. xix, p. 197. 
1861-63. _,, i Mérch. Rev. Serp. Naturhist. Tidssk., p. 363. 
1865. a F De Quatrefages. Annel., ii, p. 551. 
1875. r Marion and Bobretzky. Ann. Sc. nat., 6° ser., t. 1, p. 95, pls. xi and 
xii, fig. 24. 
- be * Marion. Rev. Sc. nat., t. iv, p. 470. 
1879. re globifer, Théel. Annél. N. Zemb., p. 66, pl. iv, figs. 63—65. 
es - semilis and ampulliferus, Marion, Ann. Se. nat., 6° sér., t. viii, No. 7, p. 29, pl. xvii, 
fig. 9. 
1883. globifer, Levinsen. Vidensk. Meddel., p. 197. 
1884. 3 ampulliferus, Hrley. Mitt. Zool. St. Neap., Bd. v, p. 209, Taf. xv, fig. 20. 
similis, Langerhans. Zeitschr. f. wiss. Zool., p. 277. 
1885. 5 ampullifer, Carus. Fauna Medit.,i, p. 278. 
1892. . globifer, Marenzeller. Zoology. Jahrbiich., p. 430, Taf. xix, figs. 8—8 c. 
1893. es 3 idem. Polych. Grundes, p. 14, Taf. iii, fig. 11. 
“ rr similis, Lo Bianco. Atti R. Accad. Sc. Nap., vol. v, No. 11, p. 90. 
Omphalopoma fimbriata, idem. Ibid., vol. v, No. 11, p. 88. 
Apomatus similis, Marenzeller. Denkschrift. K. Akad. Wiss. Wien, Bd. Ix, p. 38 (sep. abd.) 
Oo JL, oll, mei, iikey,, 112, 
1894. s globifer, Bidenkap. Christ. Vid.-selsk. Forhandl., p. 138. 
similis, De St. Joseph. Ann. Sc. nat., 7° sér., t. xvii, p. 369, pl. xiii, figs. 415—419. 
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