64 CRUSTACEA COPEPODA. II. 
Male. — The single specimen seen is 0.26 mm. long. The body (fig. 7 f) seen from the side is ovate, 
and the appendages occupy scarcely half of the length of the ventral line. — Antennulee 3-jointed; third 
joint much longer than any of the two others and terminating in 3 spines of different length. — The sympod 
of the antennee indistinctly 2-jointed; exopod 2-jointed and terminating in 2 short spines; endopod one- 
jointed, without spine. — Maxillule as in the female excepting that its two branches are proportionately 
longer. — The maxille and the maxillipeds well-sized and robust, though proportionately smaller than in 
C. Stichet. 
Occurrence. — Taken by the “Ingolf’”’ at a single station. 
Davis Strait: Stat. 35: Lat. 65°15’ N., Long. 55°05’ W., 362 fathoms, temp. 3°.6; 10 females and 
1 male on the distal part of the anal fin of Polyacanthonotus rostratus Collett. 
79. Clavella rugosa Kroyer. 
1837. Anchorella rugosa Kroyer, Nat. Tidsskr. B.I, p. 284, Tab. II, fig. 7; Tab. III, fig. 14, a—c. 
1863. —- — Kroyer, Nat. Tidsskr. 3. Rekke, B. II, p. 383. 
11913. Clavella — TT. & A.Scott, Brit. Paras. Cop. p. 216, Pl. LXV, figs. 4, 5; Pl. LXVI, figs. 1—7. 
!r915. Clavellodes — Wilson, Proc. U.S. Nat. Mus. Vol. 47, p. 690, Pl. 27, fig. L; Pl. 51, figs. r1go—r9g9. 
Occurrence. — Not taken by the “Ingolf’’. 
C. rugosa lives on the gills of Anarrhichas lupus, A. minor and A. latifrons. — At West Greenland 
it has been taken a few times; the only special locality noted is Egedesminde (Olrik). —- At Iceland it 
has been found (on A. latifrons) by Hallgrimsson; at North-West Iceland in Onundarfjord and in Dyre- 
fjord (many specimens) by Mag. sc. W. Lundbeck; at North Iceland in Ofjord by Méller. — At the Feeroes 
it has been secured by Sysselmand Miiller. 
3 Distribution. — T. & A. Scott record localities from the north-eastern Ireland, from both sides 
of Scotland and from the east coast of the northern England. It is recorded from Belgium by v. Beneden, 
from the southern Kattegat by Kroyer, from the Sound and from Warberg (east side of Kattegat) by Olsson. 
Finally from Casco Bay, Maine, by Wilson. 
Family Choniostomatide. 
Since my monograph! of this family was published, rather little has been added to our knowledge 
of these generally small or minute parasites infesting Crustacea of various orders. Three papers may be briefly 
named, viz. two by T. Scott on rare or new Crustaceous (in Reports Fishery Board for Scotland for the years 
1904 and 1905), and H. J. Hansen: Two new Forms of Choniostomatidée . . . (Quart. Journ. Microsc. Science, 
Vol. 48, II, p. 347—358, Pl. 22). The last-named treatise is noted here because it contains the description 
of a new genus found on the Ostracod Sarsiella hispida Brady from Akaroa Harbour, New Zealand, as it 
may perhaps be possible to discover allied parasites on the body of some boreal or arctic Ostracods. In the 
present paper no less than 18 species from the “Ingolf”’ area are mentioned, 8 of which are new to science; all of 
them live on Decapoda, Amphipoda, Isopoda or Cumacea, while no specimen of the two genera parasitic on My- 
1 H.J.Hansen: The Choniostomatide. A Family of Copepoda, Parasites on Crustacea Malacostraca. Copenhagen 1897. 4to. 
