710 
EDWAED W. SHANN. 
On removing the skin from the base of the adijDose lobe and 
that covering the dorsal aspect of the outermost fin-ray a 
splint of bone, fig. 2 (Sp.), was observed connecting the fin- 
ray with the base of the adipose lobe. At its adaxial 
extremity this splint of bone is attached by connective tissue, 
just as two adjacent fin-rays are connected, to the dorsal half 
of the outermost fin-ray posterior to the point where the 
Text-fig. 1. 
Adipose lobe from the left side to show its' connection with tlie 
pelvic fin. The ligament connecting with the dorsal ramus of 
the head of the fin-ray has been severed, and the lobe deflected 
outwards through an angle of 180° (so that its inner, angular 
surface is presented). Ad. Adipose lobe. F.r.d. Dorsal half 
of the 1st fin-ray. Lig. Ligament. 8p. Splint of bone. 
latter is joined by the ventral half ; but while the two halves 
are still quite distinct, the splint in this region is rectilinear, 
and in girth somewhat more* slender than the dorsal half of 
the fin-ray. At its abaxial extremity the splint curves sharply 
upwards so as to circumscribe the base of the adipose lobe 
(Text-fig. 1). There appear to be no muscles connected with 
the splint ; it simply lies in a pocket of connective tissue, to 
the walls of which it is loosely attached; nor are there in the 
adult any muscles connected with the adipose lobe. On the 
