552 PHILOSOPHY OF ZOOLOGY. 



c. Tail with txoo seta, one 07i each side. 

 25. Nebalia. 26. ZoEA*. 



Tribe II. Edriophthalma. 

 Eyes sessile. 



Dr Leach gives the following distribution of the ge- 

 nera : 



Section I. 

 Body laterally compressed. Legs fourteen. Antenna: 

 two, inserted one on each .side of the front of the head. 

 {Tail furnished zvith styles). 



1. Phronyma. 



Section II. 

 Body laterally compressed. Legs fourteen, with lamelli- 

 form cox<£. Antenna four, inserted by pairs. {Tail fur- 

 nished xaith styles). 



Division I. Antenntt four-jointed, the last segment 

 composed of many little joints ; the upper ones very short. 



2. Talituus. 3. Orchestia. 



Division II. Antenna; four-jointed, the last joint com- 

 posed of several little joints ; upper ones rather shortest. 



4. Atvlus. 



Division III. Antennae three-jointed, the last one com- 

 posed of several little joints ; upper ones longest. 



5. Dexamine. 6. Leucothoe. 



Division IV. Antennae four-jointed, the last segment 

 composed of several little joints, upper ones longest. 



Subdivision 1. Four anterior legs monodactyle; second 

 pair with a much dilated compressed hand. 



7. Melita. 8. M^RA. 



Subdivision 2. Two anterior pair monodactyle and 

 alike. 



See Dr Leacu's Description of the Zo'Ca davata, Tuckey's Nar. p. 414. 



