12 



Part first. 



black, with deeply forked tail. *Apogon (fig. 33), red, 

 only in summer. 



Sea-weeds. Red algse (Sebdenia and Vidalia), like 

 withered beech- leaves. Green alga (Codium bursa], dark 

 green balls, the size of a marble to that of a melon. 



Fig. 32. Heliases chromis, Fig. 33. 



*/2 n at. size. p. 96. * 



Apogon rex mullorum, 

 nat. size. p. 96. 



Tank Nr. 5. 



About ten kinds of Fishes continuously swimming. 

 Among these prominent by colour or otherwise: Peacock- 

 wrasse (Crenilabrus pavo, fig. 34), with blue fins and tail, 

 the lips are strongly turned outwards. Sea-bream (Snapper, 

 Pagellus, fig. 37), a delicate coral-pink. Gilt-head (Chryso- 

 phrys, fig. 38), silver, a black smudge on each side behind 

 its head. (Larger specimens in Tank 10). Wrasse (Labrus, 

 fig. 35 and 36), shaped more or less like Crenilabrus, green 

 or mottled. Toothed-bream (Dentex, fig. 39), silvery, heavy 

 nose, eyes high, straight mouth with corners down, noti- 



Fig. 34. Crenilabrus pavo, 

 '/2 nat. size. p. 96. 



