295 
material shall have to settie the systematic position and value of 
the group. 
The inner ramus of cirrus III on the left side of the animal 
dissected shows an interesting phase of regeneration (Fig. 42 c). The 
wound is closed by a chitinal layer, and within the last, undam- 
aged segment the formation of four new, small segments are seen, 
building the coming outer end of the ramus on exuviation. This 
lends support to the statements of Darwin (1854, p. 158) as to 
the reparation of wounds and losses in cirripeds, and points to a 
pronounced power of regeneration in the cirri. 
Vervuca Kviigevi n. sp. 
3 miles S. W. of Tueuran, 300 fathoms. 10/III 14. Several specimens on 
spines of a Cidaris, together with Megalasma striatum and He- 
teralepas nodulosa. 
Rostrum prominent, rather hornlike, interlocking with the carina 
by one large upper, and two smaller inferior ribs. Three or four 
articular ribs on the movable tergum and scutum. Movable tergum 
with a pronounced diagonal rib and, interlocking with the carina, 
two lower median and a stronger marginal rib. Fixed scutum and 
tergum almost without ribs or sculpture, the other plates strongly 
sculptured. 
In the present species (Fig. 43) rostrum is by far the largest 
of the plates; its umbo is situated almost in the centre of the 
plate, with numerous ridges radiating in all directions. The stronger 
ridge, or rather crista, runs in the direction of the carinal umbo, 
and interlocks with the carina in a very deep sinus of the latter 
plate. Several ridges (7 or 8) run towards the margin and join the 
scuta, four of them interlocking with ridges of the movable scutum. 
The carina interlocks with the movable tergum by two nar¬ 
row ribs; a broad third rib has its upper edge in the sinus adjoin- 
ing the diagonal scutal crista, its lower edge adjacent to the strong 
crista of the rostrum. On the lower side the carina is less strongly 
sculpturated. 
The fixed tergum and scutum are almost devoid of ridges, 
but the lines of growth are easily distinguished. 
The movable tergum has a strong diagonal rib or crista 
