Notes on Luvarus imperialis Raf., a fish new to the fauna of Norway. 33 
Explanation of Plates. 
Bisel 
Fig. 1. Luvarus imperialis Raf. Specimen from Norway (The Bergen 
Museum nr. 3267); 1/5 natural size. 
— 2. The same specimen, seen from above. 
The ventral fins with the groove for anus; (about */s natural size). 
— 4. Left ventral fin, seen from the side; (about 31 natural size). 
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cS 
PI. II. 
Figs. 15. Luvarus imperialis Raf. Specimen from 
Norway (The Bergen Museum). 
Part of the wall of the stomach. (Natural size). 
Seale in the skin. < 25. 
Isolated scale. >< 25. 
Topplate of a scale, looked at from above. X 70. 
do. , seen from below. 70. 
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eC GE 
Figs. 6—13. Astrodermus elegans (= Luvarus imperialis 
Rai. juv.). Specimen from the coast of Sicily. 
(The Bergen Museum nr. 1150.) 
Figs. 6—7. Spine from the ventral side; fig. 6, seen from above; fig. 7, seen 
from the side. >< 25. 
Fig. 8. Double pointed spine from the hinder part of the body. x 25. 
— 09. Piece of skin with scales (from the left side of the back). x 8. 
Figs. 10—12. Isolated scale, coarse-stemmed type; fig. 10, from above; te Hi 
side view; fig. 12, basal part from below. * 25. 
bis. 113 Isolated scale; thin-stemmed type. X 25. 
