EEVIEW OF HIPPOCAMPUS — GINSBURG 



503 



As far as I can judge by current descriptions of seahorses, authors 

 generally count the first compound segment as one; but some writers 

 apparently include the first caudal segment in the count of the trunk 

 segments, although nearly all accounts are not clear regarding the 

 method of counting used by their authors. Where authors definitely 



tp. seg.l. 



me 



dpi 



up. pi- 

 a.ni:p. tp. seg: 

 fa — p. tp. seg". 



i.tpseg. 

 ex.pL. 



7^W cmd. sm. 1. 



cdLud. seg. z. 



up.pL 



[See opposite page for description] 



