1884.
1885.
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1917.
Theleptis cincinnatus, Marenzeller. Sitzb. K. Akad. Wien, t. lxxxix, p. 205.
„ circinnata, Wirén. Kongl. Sv. Vet.-Akad. Handl., Bd. xxi, p. 21, Taf. ii, figs. 1, 2.
„ cincinnatus, Carus. Fauna Medit., i, p. 265.
„ circinnatus, Harvey Gibson. Proc. Lit. and Philos. Sbç. Liverp., vol. xl, p. 158.
„ cincinnatus, Marenzeller. Polarforsch., p. 15.
„ „ Webster. Chæfc. Eastport, Maine, U.S. Com. F. and F., p. 749.
„ circinnatus, Cunningham and'Ramage. Tràns. Roy. Soc. „ Edin., vol.x xxiii, p. 665. cincinnatus, E. Meyer. Arch. f. Mat., lv, p. 133.
„,, circinatus, Homell. Trans. Biol. Soc. Liverp., vol. v, p. 257. cincinnatus, Appeîlôf. Berg. Mus. Aarb., p. 8.
Thelepodopsis flava, Levinsen. “Hauchs,” p. 350.
Thelepus cincinnatus, Lo Bianco. Atti R. Accad. Sc. Nap., vol. v, No. 11, p. 57.
.,„, circimiatus, Bidenkap. Christ. Vet.-Akad. Forhandl., p. 126. „ cincinnatus, Roule. Camp.' “ Caudan,” p. 458. „ circinnatus, Appeîlôf. Berg. Mus. Aarb., p. 12. cincinnatus, Michaelsen. Polych. deutsch. Meere., p. 172.
}, „ De St. Joseph. Ann. Sc. nat., 8e sér., v, p. 427, pi. xxiii, fig. 240.
„ „ Ssolowiew. Ann. Mus. St. Pétersb., t. iv, p. 216.
„ circinnatus, Meyer. Arch. f. Naturg., Jahrg. 55, p. 12.
„ „ Whiteaves. Cat. Mar. Invert. E. Canada, pp. 14 and 73.
„ „ Percy Moore. Proc. Acad. N. Sc. Philad., vol. liv.
,, crassibranchiatus, Treadwell. Bull. U.S. F. Com. (1900), pt. ii, p. 206.
„ antarcticus, Willey. " Southern Cross,” p. 278.
,,,, circinnatus, Graeffe. Arb. Zool. Stat. Trieste, Bd. xv. cincinnatus, Augener. Westind. Polych., p. 182. _
„ — ,, Norman. Mus. Norm., p. 10.
„ ,, Ehlers. Deutsch. Tiefsee-Exped., p. 146.
)> „ Percy Moore. Proc. U.S. Nat. Mus., vol. xxxvii, p. 141.
„ ,, Fauvel. Bull. Inst. Ocean ogr., cxlii, p. 36.
Telepus „ Lo Bianco. Mitt. Zool. St. Neap., Bd. xix, p. 588.
Thelepiis „ Southern. Proc. Roy. Irish Acad., vol. xxviii, p. 238. -
„ „ Fauvel. Bull. Inst. Oceanogr., No. 194, p. 36.
„ circinnatus, Wollebæk. Skrift. Vid.-selsk. Krist., No. 18, p. 89, pi. xxiv, figs. 1—3,
pi. xxv, figs., 1—7, pi. xxix, fig. 1.
„ „ Ditlevsen. Danmark-Eksped. Grônl., Bd. v, p. 428.
,, cincinnatus, Crawshay. Journ. M. B. A., vol. ix, p. 344.
.. ,, Meyer. Inaug. Diss. Kiel, p. 46.
,, circinnatus, Augener. Zool. Anz., Bd. xli, p. 269.
„ „ Fauvel. Bull. Mus. Hist. Nat., p. 91.
„ circinnatus, Southern. Proc. Roy. Irish Acad., vol. xxxi, No. 47, p. 125.
,, cincinnatus, Fauvel. Campag. Scient. Monaco, xlvi, p. 306.
„ „ Southern. Irish Sc. Invest., No. 3, p. 47.
, „ McIntosh. Ann. Nat. Hist., ser. 8, vol. xv, p. 26.
„ . „ Allen. Journ. M. B. A., vol. x, p. 635.
„ „ Hessle. Zool. Bidr. Uppsala, Bd. v, p. 212.
Habitat.—Generally from deep water on the eastern coast of Scotland, the tubes
being coiled inside bivalves, sometimes fixing the valves in their coils ; in the interstices of
laminarian roots tossed on shore by storms; under stones at extreme low water, Loch-
maddy, as well as in the Loch itself; sometimes amongst masses of Serpulse from deep
water; dredged in 50 fathoms off Balta, Shetland (J. 0. Jeffreys«Firth of Forth
(Leslie and Herdman); Me of Arran (E. P. Wrigl-.t); Dublin Bay; west coast and other
parts ofiïreland (Southern); Plymouth (Spenoe Bate and B. Bowe).
This form is widely distributed abroad, but has probably been confused with other
species. Taking, however, the literature as it is, it probably ranges from the Mediterranean
to Spitsbergen, Greenland, Finmark, Iceland, Jan Meyen, Canada, the United
States and Japan. Shores of France. Dredged by the “ Knight Errant ” at 987 metres;
by the “ Caudnn” at 400 metres in the Gulf of Gascoigne; Azores (Fauvel); White
Sea (SSblowiew); Gulf of Mexjfc^; Madeira (Langerhans, Fauvel); Siberia and Behring’s
Sea (WirénH Franz Joseph Land (Augener);} South Antarctic Seas, N.E. America
(MooTreh)e. dorsal cephalic collar is well marked, and has posteriorly a series of eye-specks,
whilst the external rim passes downward to the ventral surface and joins the lower edge
of the supra-oral arch. A comparatively short space thus intervenes , between the two
sides ventrally, a space which is occupied by the inner tongue-shaped process, and the
short fillet of the post-oral segment. The supra-oral arch is moderately prominent, but
limited in extent, and often forms a small spout-shaped process. It is of a deep orange
colour with a pale border, and a belt of minute brownish dots just below the pale rim.
The anterior surface of the cephalic plate is occupied by the tentacles, which are of a pale
flesh colour of orange with or without red specks. They are long, powerful, and
marked here! and there with whitish opacities, probably from the peritoneal corpuscles,
which roll backward and forward in their interior. In some examples they are of a
deeper hue than those of Polynmia nebulosa,, probably from the presence of the reddish
specks. These mobile organs are grooved throughout, and are sometimes flattened in a
spatulate manner and again contracted and richly crenate. Under the structureless
cuticle is the cellulo-granular hypoderm; then follow the fine but tough non-striated
muscular fibres, circular and longitudinal. In life the slender vermiform tentacles coil and
twist in every direction, now showing nodular enlargements and again extending into a
uniform thread as before, or actively wriggling as if- endowed with independent life.
Each granular tentacle when separated from its attachment to the cephalic plate coiled
itself in spasmodic jerks or gently unfolded. By their aid, as in other Terebellids, the
annelid pulls itself upward on the perpendicular wall Of a glass vessel. The tentacles at
the ventral angle of the cephalic plate are small and short, The plate itself can be
shortened or extended at will.
The body is typical of the Terebellids, viz., enlarged anteriorly and tapered gently
therefrom to the posterior end, where the anus is terminal and surrounded by about
a dozen papillae. It is rounded dorsally, and more or less rugose or warty in old
and large specimens anteriorly, rounded also anteriorly on the ventral surface, then
flattened and slightly grooved, the groove continuing almost, to the posterior end.
The segments are distinctly marked throughout, the anterior presenting dorsally four
transverse lines, and the longer and narrower posterior segments a larger number.
The ventral scutes (glandular thickenings) are well developed, and can be distinguished