CCX1V 
APPENDIX. 
two inches in length ; the head is more compressed, and not so much flattened 
as in the preceding well-known species, and is armed with two strong spines 
directed backwards, placed before and between the eyes : the gill covers are 
also each armed with four strong spines ; the pectoral fins are larger in pro- 
portion than those of the Gobio, and the upper jaw rather exceeds the lower ; 
the lateral lines are furnished with a series of small tubercles directed 
backwards ; colour light, with clusters of minute dusky spots. D. '6, 13. 
P. 15. V. 5. A. 14. C. 14. 
SPECIMENS of the very few insects which were seen by the Expedition 
whilst within the Arctic Circle, having been sent to the Rev. William 
Kirby, of Barham, Suffolk, the following account and description of them 
have been received from that gentleman : 
“ Otho Fabricius, in his Fauna Groenlandica (if we exclude the Crustacea ,) 
has described only 79 species of insects and Arachnids, and of insects proper 
only 63, which he collected during a residence of six years in West Green- 
land ; and Professor Hooker speaks of those of Iceland as being very few in 
number ( a ) ; it was therefore to be expected that in a station more than ten 
degrees to the northward of the theatre of their researches, the numbers of 
the insect world would be very greatly reduced ; and it will not excite much 
surprise, that only six species should have been collected in that high lati- 
tude, from the beginning of September to the beginning of August, the 
period during which the Expedition remained in Winter Harbour. It is pro- 
bable, however, that some may have escaped observation, and others might 
possibly make both their annual appearance and retreat during the month of 
August. The Thirds also that frequent the island have, doubtless, their 
( a ) Recollections of Iceland , 1st edit. 272. 
