- 
Notes on Luvarus imperialis Raf., a fish new to the fauna of Norway. 17 
most faded away, in other respects the specimens are in a splendid 
state of preservation. One of them is the smallest of its kind 
hitherto closely described, its total length being 177 mm. (to the 
vertical line through the tips of the caudal fin); length of body 15! 
mm.; the other specimen measures 215 & 185 mm. respectively. 
On the whole, these specimens correspond to the description 
Moreau has given of Astrodermus elegans (Risso) and also 
to the drawing and detailed description, which Cuvier and 
Valenciennes’) have given of A. coryphaenoides Bon. I will, 
therefore, in addition to measurements given on page 30, only 
mention a few details. The shape of the body will be seen from 
Fig. 6. Astrodermus elegans. (4/2 nat. size). 
the illustration. (Text-fig. 6). The body is comparatively speaking 
more compressed than in my more fully grown specimen, the 
forehead is not so upright but more sharply pointed; there is an 
even increase in thickness as far as the breadth of the mouth; 
the peculiar shape of this part of the adult head is not apparent 
in these younger specimens, and the ridge which stretches from 
the gill-cleft forward over the eye is only slightly developed. In 
the larger of the two specimens, the lateral line can be discerned; 
the superior branch reaches about as far back as the. pectoral 
fin; the inferior branch can just be traced at its beginning. 
ee 
*) Cuvier & Valenciennes: Hist. nat. des Poissons. T. 9, p. 262. 
Ee 270, Paris 1833. 
