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25
Gen. 4. Anoplodactylus, Wilson (1378).
Transact. Conn. Acad. Arts & Sciences. Vol. V.
SlægtBcharacter. Legemet mere eller mindre
smækkert, med forholdsvis lange Sidefortsatser. Hovedsegmentet
fortil indknebet og fremragende over Roden af Snabelen.
Halesegmentet mere eller mindre forlænget. Øieknuden
beliggende ved Enden af Pandedelen, vel udviklet eller
rudimentær. Snabelen udgaaende fra Hovedsegmentets
ven-trale Side. skraat nedadrettet. Saxlemmerne forholdsvis
svage, hnarbesatte, med Saxen liden og Fingrene neppe
forciperede. De falske Fodder hos Hannen 6-leddedé,
sidste Led meget lidet, børstebesat, uden Klo.
Gangfød-derne spinkle, mere eller mindre forlængede, sparsomt
haarbesatte, Tarsalleddet meget kort, Fodleddet forlænget,
med Inderkanten fremspringende ved Basis og her
bevæbnet med stærke Torner, Endekloen stærkt forlænget,
lefor-mig, Bikloerne yderst smaa og rudimentære, ikke
fremragende foran Endekloens Yderkant. Flere kuglefonnige
Ægmasser fæstede til de falske Fadder hos Hannen.
Bemærkninger. Den Character, hvorpaa Wilson
væsentlig synes at have grundet denne Slægt, nemlig den
formentlige Mangel af Bikloer, er vistnok ubrugelig, da
saadanne i Virkeligheden forefindes, skjondt i en meget
rudimentær Tilstand; men jeg tror dog, at Slægten bor
opretholdes, da de herhen horende Arter viser en Del
andre eiendommelige Characterer, der synes at maatte
kunne tillægges generisk Betydning, saasom
Hovedsegmentets characteristiske Form. Saxlemmernes svagere Bygning,
og navnlig det større Antal Led i de falske Fodder.
Slægten synes at tælle ikke faa Arter. Foruden den
typiske Fonn, A. lentus Wilson, og de to nedenfor nærmere
’beskrevne Arter, hører herhen Phoxichilidium virescens
Hodge, samt efter al Sandsynlighed de 2 af Dohrn
beskrevne middelhavske Arter, P. angulatum og exiguu/m.
Endelig synes den af Hoel; fra Challenger Expeditionen
opforte Art P. insigne, ialfald at domme efter de falske
Fodders Udseende, nærmest at maatte henregnes til samme
Slægt.
Gen. 4. Anoplodactylus, Wilson (1878).
Transact. Conn. Acad. Arts & Sciences. Vol. V.
Generic Character. Body more or less slender, with
comparatively long lateral processes. Cephalic segment
anteriorly constricted and projecting beyond base of
proboscis. Caudal segment more or less elongate.
Oculiferous tubercle located at extremity of frontal part,
well-developed or rudimentary. Proboscis issuing from ventral side
of cephalic segment, directed obliquely downwards.
Cheli-fori comparatively feeble, covered with Hair, having the
chela small and the fingers scarcely forcipate. False legs
in the male 6-jointed, terminal joint very small,
bristle-bearing, without any claw. Ambulatory legs slender, more
or less elongate, sparingly hair-beset, tarsal joint very short,
propodal joint produced, with inner margin projecting at
base, and armed there with strong spines, terminal claw
elongate, falciform, auxiliary claws exceedingly small and
rudimentary, not projecting beyond outer margin of
terminal claw. Several globular egg-masses attached to the
false legs in the male.
Remarks. — The character on which Wilson would
seem to have chiefly founded this species, viz., its supposed
want of auxiliary claws, is certainly untenable, as such do
really occur, although in a very rudimentary state; meanwhile
the genus should, I cannot but think, be retained, as the
species classed under it exhibit certain other peculiar
characters, to which apparently we can assign generic
value, thus, for example, the characteristic form of the
cephalic segment, the feebler structure of the chelifori, and
more especially the greater number of joints in the false
legs. The genus would appear to comprise not a few
species. Excluding the typical form, .4. lentus, Wilson,
and the 2 species described below, it counts Phoxichilidium
virescens, Hodge, and in all probability the 2 Mediterranean
species, P. angulatum and exiguum, described by Dohrn.
Finally, the species etablished by Hoek from the
„Challenger" Expedition, P. insigne, judging at least by the
appearance of the false legs, would appear to approximate
the same genus closest.
5. Anoplodactylus petiolatus i Krøyer).
(Pl. II, Fig. 2, a—1).
Phoxichilidium petiolatum, Krøyer, Nat. Tidsskr, 2 Række,
Bd. 1. ]). 123.
„ „ Gaimard’s Voyage en Scandinavie, PI.
38, fig. 3, a—f.
Patlene pygmæa, Hodge. Ann. Mag. Nat. Hist., 3 ser.. V.
Xlii, p. 116, Pl. XIII, fig. 16—17.
-Phoxichilidium mutilatum, Semper, Arb. aus des Zool.
Zool. Inst, in Würzburg. Bd. 1, p. 271. Tab. 17,
Fig. 12—16.
Den norske Nordhavsexpedition. G. O. Sars: Pycnogonidea.
5. Anoplodactylus petiolatus (Krøyer).
(PI. II, fig. 2. a—1).
Phoxichilidium petiolatum, Krøyer, Nat. Tidsskr. 2 Række,
Bd. 1, p. 123.
,. „ Gaimard’s Voyage en Scandinavie, Pl. 38,
fig. 3, a—f.
Pallene pygmæa. Hodge. Ann. Mag. Nat. Hist. 3 ser., V.
XIII, p. 116, Pl. XIII. figs 16. 17.
Phoxichilidium mutilatum. Semper, Arb. aus der Zool.
Inst. in Würzburg Bd. 1. p. 271. Tab. 17, fig.
12—16.
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