?4 JOHAN KIÆR, M.-N. K!. 



ment has a considerably rounder section than that given by Holm for 

 •Torellella laevigata. The two axes of the section are related to each other 

 as I : 1.5. It is therefore probable that the Tomten form has had a shell 

 with such a section. 



The two sides of the shell appear to have been exactly similar. The 

 dimensions are often quite considerable. The said specimen, which I have 

 selected as a starting point, is 155 mm. long. Its broader and straighter 

 part is about 10 mm., the narrower initial part 5.5 mm. However the apex 

 is broken off. so that I assume the initial part to have been originally 

 8—9 mm. long. This gives a total length of 18 — 19 mm. The breadth 

 of the shell in this greatly compressed specimen is 1.5 mm. at the 

 broad end. 



Other fragments have greater dimensions and indicate a total length 

 of 25 — 30 mm., with a breadth at the broad end of about 2 mm. in a 

 compressed condition, or presumably about 1.5 mm. in the original un- 

 pressed state. 



If we compare this with Holm's description of the typical Torellella 

 laevigata Lnrs. it will be seen that the Temten form differs from the 

 former in several respects. The shell is larger, more regular, straighter. 

 and has a rounder section. 



With our existing and still very imperfect knowledge of Torellella 

 ■laevigata Lnrs. there does not appear, however, to be any reason for 

 separating the Temten form as a new species, as Linnarssgn's species 

 , differs considerably within the limits given to it by Holm. In addition to 

 the main form he gives in his work a var. falcata which in certain re- 

 :spects reminds one of our form. However, the broad straight part in 

 var. falcata has a greater angle of divergence than the latter, and the 

 section is even more compressed than that of the main form. I therefore 

 place the form from Temten as a new variety, which I name var. Holntt 

 after Professor G. Holm, the eminent authorit}- and worker in the field of 

 Scandinavian Hyolithidac and related forms. 



Fam. Eyolithidae Nicholson. 

 Amongst my material from Temten I succeeded in finding the remains 

 <'f 4 entirely different Hyolithus forms. The Hyolithidae thus occupy quite 

 a prominent position in our Holniia fauna. Unfortunately these forms were 

 found only in isolated, mostly fragmentary, and badly preserved specimens. 

 3 of these forms will therefore be described under the name Hyolithis sp. 

 No. 1 — 3; the 4th on the other hand is so characteristic that I venture to 

 place it under a new name. 



