12 



Part first. 



Fishes. Heliases (fig. 32) , small and black , with deeply 

 forked tail, * Apogon (fig. 33), red, only in summer. 



Sea-iceeds. Red algi© {Sebclenia and Vidalia) like withe- 

 red beech-leaves. Green alga {Codiinn bursa), dark green 

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



Fig. Z'l.^HeUases chromis, 

 1/2 nat size. p. 90. 



Fig. 33. Apogon rex raullorum, 



^1; nat. size. p. 96. 



Tank IsTr. 5. 



About ten kinds of Fishes continuously swimming. Among 

 these prominent by colour or otherwise: Peacock-wrasse (Ore- 

 nilahrus pavo , fig. 34), with blue fins and tail, the lips are 

 strongly turned outwards. Sea-bream ( Snapper , Pagellus , 

 fig. 35), a delicate coral-pink. Gilt-head {Chrysoplirys, fig. 38), 

 silver, a black smudge on each side behind its head. (Larger 

 specimens in Tank 10). Wrasse ( Lahrus , fig. 36 and 37), 

 shaped more or less like CrenUahrus , green or mottled. 

 Toothed Bream (Dentex, fig. 39) , silvery , heavy nose , eyes 

 high , straight mouth with corners down , noticeably sullen 



Fig. 34. CrenUahrus pavo (Peacock-wrasse), 

 Va nat. size. p. 95. 



