Tank^Nr. 22.-* 



Fig. 129. Fuor specimens of Avicula hirundo attached to a stone, 



J / 2 nat. size. p. 83. 



Fishes. Sea-horse (Hippocampus, fig. 130), head like the knight 

 in chess, tail curling forward, generally attached to a coral 

 or weed. 



Crustaceans. Semetirnes hanging down from floating wood or 

 pumice the * Goose - barnacle (Lepas , fig. 131). Crawling 

 on the sand or half hidden in it * Pe.ncus (fig. 132) and 

 * Stenopits (fig. 133). 



Fig. 130. Hippocampm 



guttulatus (Sea-horse), 



1 !>> nat. size. p. 90. 



Fig. 131. Lepas anatifera 



(Goose-barnacle) hanging 



to a floating piece of pumice-stone. 



*/s nat. size. p. 75. 



