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.
figure tfie postero-clorsal corner of the shell is pointed, in mine it is rounded; cf. in addition the
proportions of the lengths of the end claws in C. CLAUS, 1874 b. pl. II, fig. 15 with the
information given by me above.
It seems to me very probable that G. 0. Saks’s species C. pellucida. 1887, is identical
with the form described by me above. This identification is, however, not quite certain, as the
original description of this species is unfortunately too incomplete to permit of a quite certain
identification*. Among the facts that seem to me specially to support this identification the
following may be mentioned: Length of shell : = 1,15 mm.; Ç 1,25 mm. E-bristle on the
male first antenna: In pl. XIII, fig. 2 a ten pairs of spines are drawn on this bristle. (The
equipment of the b-bristle on the first endopodite joint of the male second antenna is uncertain.)
- C. CLAUS put forward as early as in his treatise of 1888 (p. 153) the assumption that this
species of G. 0. Sars’s might possibly prove to be identical with C. spinirostris. In his work
of 1890 this author writes (p. 7) these two naines as certain synonyms; this procedure has since
been followed by almost all subséquent writers.
The certainty of the identification of C. spinirostris, C. Claus, 1890 and 1891 a with the
species described by me above may be taken as being complete. The following characters may
be specially mentioned: Lenglh of shell: d = ,,circa 1,1 mm.“; $ = „circa 1,25 mm.“ With
regard to the e-bristle on the male first antenna this author writes, 1891 a, p. 56: „mit nur
8 bis 10 Häkchenpaaren besitzt, auf welche noch vereinzelte, unregelmäßig gestellte
Hakenspitzen in weitem Abstande folgen**“. According to pi. I, fig. 6, 1891 a. the b-bristle on the
endopodite of the male second antenna has only two long hairs.
It may also be said that there is füll certainty with regard to the identification of C.
spinirostris, G. W. MÜLLER, 1894 with the species dealt with above. The following information
with regard to the characters just mentioned is given in the work quoted: Length of shell: =
1,0—1,1 mm.; Ç = 1,1—1,18 mm. Male first antenna: We read about the equipment of the
e-bristle: „Bis zum 11. oder 12. folgen sich die Haken in kurzer Entfernung, stehen paarweis,
dann rücken sie weiter und weiter auseinander und stehen einzeln, um sich schließlich wieder
rascher zu folgen. Nach dem 11. Hakenpaare kommen noch etwa 12 Borstenhaken, die zum
Theil schwer zu erkennen sind.“ The b-bristle on the first endopodite joint of the male second
antenna is furnished with two long hairs.
I have also included without hésitation C. spinirostris, G. S. Brady and A. M. Norman.
1896 in the list of synonyms given above. With regard to the e-bristle on the male first antenna
we read as follows in the treatise mentioned: ,,.... having only eight or ten pairs of hooked
marginal appendages following which, but separated by wide intervals, are some hook-like
processes of irregulär size.“ The length of the shell and the b-bristle on the endopodite of the
male second antenna are not mentioned in this work.
The synonymization of C. spinirostris, G. S. Blady, 1902 a with this species is based
on a re-examination of this writer’s original material. It is to be noted that this synonymization
* According to a communication I reccived from this wriler the original material of this species has unfortunately
been lost.
** In the figure with which C. Claus illustrâtes this description, pi. I. fig. 4. this bristle is. however, armed
with fourteen „Häkchenpaaren“, proximally of which there are no spines at ail.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
