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PYCNOGONIDA. 
The trunk rather clumsy, smooth. 
The neck very short. 
The proboscis very short and thick, scarcely constricted in the middle. 
The oculiferous tubercle rather high, erect, almost conical, a little tapering to the top; the ocelli very 
smali, round. 
The caudal segment somewhat thick, not very long, obliquely erect. 
The chelifori somewhat short, rather clumsy, the transverse partition of the scape scarcely visible; the 
fingers very short, scarcely gaping. 
The palps especially short, unjointed, truncated. 
anne ovigerous legs short, without claws. 
The ambulatory legs somewhat short and thick, the gland duct on the fourth tarsal joint of the male 
short. The claw rather short and clumsy, with rather clumsy auxiliary claws of a little more 
than half the length of the claw. 
Total length 7,17". The proboscis 1,7", The trunk 4,3mm, The caudal segment 2mm, 
One single male taken in the port of Rio de Janeiro, and brought home by Krøver; it is 
still found in the museum. 
Krøyer, l.c. pp. 104 and 124, established this species as a Phoxichilidium, and gave also draw- 
ings of the animal, as well as some particulars; but Krøyer was no skilful drawer, and in this in- 
stance he was especially unfortunate; and as, moreover, Krøyer, contrary to his common accuracy, 
has made some essential errors by failing to see, it will be understood, that uncertainty might easily 
arise as to the interpreting of this species of his. It will therefore be of some interest to get a 
new description of the species, and it is only to be regretted that the original specimen has been 
treated so badly by being used for representation. That notwithstanding the errors and representation 
of Krøyer the divinations hitherto seem to have been correct, will not be of anv importance so as 
to prevent a future author in putting up (and, as it would seem, in rightly doing so) the species of 
Krøyer as a type of a new genus. 
Krøyer, as we have seen, referred the species to the Phoxichilidium of Milne-Edwards, of 
which genus he, 1. c. p. 121, gave a copious description in Latin, which description was to comprise 
all the species of the genus known to him. Im this description the chelifori are mentioned in the 
following manner: «Mandibulæ .…. maximæ sunt (dimidiam animalis longitudinem fere æquantes), ex 
articulo compositæ basali, chelaque breviore» — accordingly only one joint in the scape. Of the 
palps it is said: «Maxillæ prioris paris desunt — accordingly the palps are wanting. From the 
specific description may be pointed out that the ovigerous legs, 1. c. p. 124, are said to be tenjointed, 
from which the inference may be drawn that the animal has been full-grown, and further it may be 
noticed that the bristles on the ambulatory legs are not mentioned, from which fact we may securely 
conclude that the specimen of Krøyer has had no specially conspicuous bristles, or, at all events, 
that Krøyer has mot observed this peculiarity which was otherwise well known to him, and which 
he has often mentioned and described in the sea-Arthropoda examined by him. (I have in vain searched 
for such feathery bristles, comp. Bøhm 1l.c. p. 182, PI.I, fig.4 f). Finally Krøyer has not men- 
