Videnskabelige meddelelser

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Videnskabelige meddelelser

157

tail of the Danish specimen (PI. III, fig. 9) appears to be only half

the length of the tail of the specimens from the North Sea; see de

Man's fig. 2d, Pi. V. Possibly this can be due to contraction caused

by the preservation. My figure (Pi. II, fig. 2) shows how strongly the

æsophagus is contracted ; with respect to the tail the case is possibly

the same. Finally the lateral organ proves to be relatively some-

what smaller than shows de Man's figure. Besides these differences

the Danish specimen agrees well with those from the North Sea.

Linhomoeus Bastian.

Linhomoeus elongatus Bastian.

1865. Linhomoeus elongatus Bastian, Monograph p. 155.

1889. — — de Man, Troisiéme note &c. p. 207.

1916. — — Steiner, Freil. Nemat. a. d. Barentsee.

p. 592.

Little Belt ; off Snoghøj, c. 5 m.

— — c. 30 m.

Five specimens were taken, all typical.

Linhomoeus lineatus n. sp.

PI. I, figs. 2, 5 : PI. II. fig. ?,.

Little Belt; off Snoghøj, c. 5 m.

A single specimen has been taken, a female the length of which

attains 4,i mm.

In his paper from 1907; „Sur quelques espéces nouvelles ou

peu connues de Nématodes libres habitant les cotes de la Zélande"

de Man proposes the establishment of two subgenera, Eulinho-

moeus and Paralinhomoeus under the genus Linhomoeus. Eulinhomoeus

comprises those forms with a cylindric tail and with the

buccal cavity armed with teeth ; Paralinhomoeus,

on the other

side, those forms in which the tail „s'atténue plus ou moins dis-

tinctement" and with unarmed buccal cavity.

The species dealt with here lacks the dentition but has the

tail nearly cylindrical. In this respect I have therefore been in a

dilemma with the referring of it to one of the two subgenera; it

seems to be a form intermediate between them, and it also shows

affinity to the genus Metalinhomoeus de Man.

The animal is thread-shaped, about of the same thickness throuh-

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