A new Styelid Tunicate from Norway. 7 
of the family Styelidae from each other. In no other known 
Styela there are, normally, two gonads on the one side 
and only one on the other. In Styela loveni the presence 
of one gonad on each side is considered to be constant. 
As far as concerns the number of gonads, Styela theeli 
might be regarded as an intermediate form between the 
Goniocarpa-group having one gonad on each side and the 
canopus-group with two gonads on each side. So far as one 
can judge from this single specimen of Styela theeli, there 
does not seem to exist any greater resemblance between it 
and the latter group in any other respect. 
In regard to the systematical position of Styela theeli it 
should be observed that, though the species is no doubt nearly 
allied to the group Goniocarpa, it can not be referred to this 
group without further evidence. If forms like Styela theeli 
are to be included, the definition of the group should be altered. 
Or a new genus must be established. 
Provisionally, however, it may conveniently be referred 
under the genus of Styela to the Goniocarpa-group — to which 
Styela loveni also belongs — until further specimens will 
have been found, the investigation of which will serve to 
complete the description of this species. 3 
As mentioned above, Styela theeli is represented in the 
collection by a single individual, dredged in Samlenfjord at a 
considerable depth — 350 fathoms. So far as I am aware, 
no further specimen has been collected in the Norwegian 
fjords nor off the coast, though the fauna of those waters has 
been explored by several naturalists even in later times. And 
according to the literature of the subject, no Styelid resembling 
it has been reported elsewhere. For those reasons one can 
not at present determine whether the species here described is 
to be regarded as endemic or as a relic form, or whether 
possibly its occurence there is accidental, the animal having been 
carried, as larva or adult, from other regions to Samlenfjord. 
In this connection I should mention that both Styela loveni 
and Styela rustica were dredged in Samlenfjord simultaneously 
with Styela theeli. Of the former species, seven very small 
specimens were collected at a depth of 280 fathoms; of the latter, 
only one large individual was caught at a depth of 80 fathoms. 
