1912. No. 8. THE QUATERNARY SECTION OF KILEBU. 19 
Trophon clathratus L. forma typica was rather numerous of diffe- 
rent variants. One specimen of length 27 mm. was rather worn, so as 
to appear somewhat alike to T. truncatus in the outer aspect. Biome- 
trical values are, 
Length Number Per cent 
ee IE RES RR: 4 12,1 
HS SG ae M oiu i. 12 36,3 
20—25 » AIT UM 8 24,2 
25—30 » ADR DELE 8 24,2. 
32 » ATS TT I 3,0 
Trophon clathratus L. var. gunneri. This variety was found in two 
fine specimens of length 14 mm. 
Trophon sp. clathratus, var. Of this variety two specimens of length 
ıo mm. were found of quite the same type, which I have described on 
a former occasion! and it belongs to the slender one. 
Buccinum sp. Numerous specimens of different species and varieties 
formed a generic series of great interest. But, as they are very much 
worn and decorticated, I have placed them all under one common head 
and shall only direct attention to my former treatment? of these inter- 
esting series, in which traces are seen of B. groenlandicum Cuemn. and 
B. finmarchianum Verxr. as well as B. undulatum Mörr. and D. unda- 
tum L., var. caerulea and forma relicta. Beside these species and 
varieties we, no doubt, also meet with several hybrid forms or indiviuals. 
Biometrical analysis also here prove highly interesting, 
Length Number Per cent 
c IOmim. 7, 30405 ale 22 3,0 
I0—20 » DR ETC het ie 121 16,5 
20—30 » wie ie E 232 31,6 
30—40 » sis aua AE CS 274 37,3 
40—50 » momen y 68 9,3 
50—60 » [PES DNE US 13 1,8 
60—70 » NOTE ER ar 2 0,2 
LE M MITT MUT e 2 0,2 
FG S. SEE CURT I O,I 
Beside the mollusca and gastropoda, some fragments of echinidae, 
vermes and crustacea are also found, 
A @yen: Contributions to the Quaternary Geology of Norway. I. 1911, p. 25. 
A. Oyen: Kvartær-studier i den sydøstlige del af vort land, 1908, pp. 65, 67, 68, 111. 
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