Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
proportion between the length of the longest natatory bristles and that of the exopodite is about
4 : 3. The first joint is furnished proximo-distally with a dense longitudinal row of short, fine
spines along about a quarter or a third of its length and close to this row there is a larger or
smaller number of scattered spines of the same type (about the same as in figs. 12 and 13 of
( symmetrica). E n d o p o d i t e: First joint: The processus mammillaris has no distal verruca.
The a- and b-bristles have no long hairs, in most cases they are quite bare. Second joint: The
c- and d-bristles are most often somewhat shorter than this joint and hâve short fine hairs or
are almost quite bare. The e-bristle is exceedingly short. The g-bristle is about as long as or
slightly shorter than the protopodite; it grows gradually narrow distally and is furnished with
rather sparse short fine hairs. The f-bristle is about a quarter or a third shorter than the g-bristle
and, like it, is not widened distally and is bare. Third joint: The clasping organs are of about
the same types as are reprodueed by (4. W. MÜLLER, 1906 a, pi. IX, figs. 22 and 23 (see the
adjoining fig. 6). The h-, i- and j-bristles are subequal, in most cases somewhat less than half
the length of the g-bristle; along the greater part of their length they are about as wide as the
proximal part of the f-bristle; they are only slightly widened proximally and have only
indications of shafts; they are bare.
Mandi b le: —- Protopo dite: Coxale: The number of teeth on the toothed
edge of the pars incisiva varied between seven and ten in the speci mens investigated by me.
Distal tooth-list: This is rather slightly narrower than the toothed edge of the pars incisiva and
is of about the type reprodueed by me in fig. 17 of C. symmetrica, but somewhat variable. It
is armed with a simple row of about 14—18 teeth. The two posterior ones of these teeth are
rather high and powerful, the posterior one of them is in most cases smooth, the other is most
frequently furnished with a few small secondary teeth. The others, 12—16, are somewhat
lower than the former ones and are smooth; they are either subequal and somewhat rounded
distally (about the same as the middle teeth in the figure just mentioned) or eise the anterior
ones are somewhat larger and wider than the others (about the same as in the figure just
mentioned). Proximal tooth-list: This is rather slightly narrower than the distal one and is armed
with a somewhat varying number (about 14—20) of teeth, arranged in a simple row. As in
the case of the distal tooth-list, the two posterior of these are rather high and powerful, like
tusks, the others vary rather as to their development, being sometimes of about the same type
as the corresponding teeth on the distal tooth-list, sometimes of other types, as, for instance, those
shown in the adjoining fig. 7. This tooth-list is furnished on the inside with numerous fine,
short spines, situated close together. The masticatory pad is simple or at any rate without any
distinct division into lobes; it is comparatively wide, about as wide as the tooth-lists; it is square
distally and is armed with exceedingly numerous rather small spines. The lancet-bristles are,
as C. CLAUS pointed out, 1891 a, p. 63 „in dem dichten Borstensaum mehr oder minder
versteckt“. Basale: The six teeth on the distal edge of the endite are furnished with exceedingly
fine serrulation. The single tooth on the outside of this process is of about the same size and
type as in my fig. 19 of C. symmetrica, finely serrated only along the distal half of the anterior
edge. The epipodial appendage is represented only by an exceedingly small
(scarcely observable with Reichert’s ocular 4. Leitz’s immersion Vi>) verruciform process.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
