Videnskabelige meddelelser

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Videnskabelige meddelelser

207

This species preys upon other freeliving Nematodes; in the

intestine of a specimen I have found the entire skeleton of the

buccal cavity of an Oncholaimiis with the three teeth. Fig. 4,

PI. XVI shows this.

Fem al e. Male.

Length : 5,6 mm. 4,5 mm.

a = 70. li =

70.

/? = 5,4. /9 = 4,4.

y = 22,0. r = 14,0.

Limfjord ; Holme

Enoplolaimus cephalophorus n. sp.

Flak.

PI. XIV. figs. 1. 5. 6: PI. XV, fig. 1.

Little Belt; off Snoghøj, c. 5 m.

The Sound ;

off Hellebæk, c. 20 fms.

Several specimens were taken on the above named localities.

The species is very easily recognized by its globular head (PI.

XIV, fig. 1). Both sexes seem to be of equal size, c. 3 mm in

length. The shape is clumsy, especially in the female. The body is

of the greatest width near the middle and tapers gradually towards

both extremities.

The lips are Urge, hyaline and part of them striated, a feat-

ure known in other species of this genus e. g. E. lahrostriatus

Southern. The globular head is provided with three rings of brist-

les the two hindmost of which consist of very long and slender

setæ ;

in my specimens these long setæ are irregularly bent in

different directions which I suppose is not the case in the living

animal.

The buccal cavity is very spacious and the jaws are medium-

sized. The lateral teeth are rather prominent and situated near

each other. The median tooth is relatively small.

The jaws seem to be highly movable what appears partly from

the mighty pharyngeal muscular mass and partly from the site

of the jaws in the different specimens. Besides the pharyngeal

musculature three relatively large glands are found in the head;

they seem to open into the jaws. The same three glands seem as

a rule to be present in the species of Enoplolaimus, perhaps in all.

The part of the (rsophagus lying behind the head is relatively

narrow, but it increases in width and keeps then its width till the