CLETODES. 95 
A. M. Norman); and in thirty-five fathoms off 
Marsden, Durham coast. The number of specimens 
found in each case was very small, The two figures 
(16 and 17, in Pl. LXXVII) show tail-segments of 
different shapes, but whether they belong to male and 
female of the same species, or to entirely distinct 
species, I have not been able to satisfy myself. 
4. CLETODES LINHARIS, Claus. Pl. LXXX, figs. 1—14. 
Lalljeborgia linearis, Claus. Die Copepoden-Fauna von Nizza, 
p. 22, t. i, figs. 1—8 (1866). 
Orthopsyllus — B. & R. Ann. and Mag. Nat. Hist., vol. xii, 
p. 138 (1878). 
Body elongated, nearly straight, cylindrical; first 
segment about as long as the three following. Ros- 
trum moderately long. Abdomen as thick as the 
thorax, and constituting half the length of the body. 
Caudal. segments very broad, scarcely equalling in 
length the last abdominal segment; the posterior 
borders of all the body-segments, except the last, are 
fringed with rows of short rectangular teeth. An- 
terior antenne short and stout, 4-jointed; in the 
female (fig. 3) the inrer margin of the second joint 
forms a very large and stout spine; the third joint is 
as long as the second, but only about half as broad, 
the fourth is short and nearly square, truncate, bear- 
ing several stout, short sete, and a curved spine at 
the upper apical angle; the second and third joints 
also have several strong sete, and the ensiform appen- 
