292 CATALOGUE OF THE MALACOSTRACA 



Talitrus, sub-genus. 



T. locusta, (Can. Gam. saltator, Mont. Linn. Trans.' ix.), Sandhopper. 

 The Tal. littoralis of 'Edin. Ency.' vii. 402. is the female; see ' Linn. 

 Trans.' xi. 356. Plymouth Museum. 

 Gammarus, sub-genus. 



G. aquaticus, (pulex of ' Edin. Ency.' vii. 402). In fresh water and ri- 

 vulets, Leach, ' Linn. Trans.' xi. 359. 

 G. marinus. In the sea, South Devon ; Leach, ' Linn. Trans.' xi. 

 G. locusta. In tide pools; Mont. ' Linn. Trans.' ix. 

 G. obtusatus, (Mont. ' Linn. Trans.' ix.) 

 Melita, sub-genus. 



M. palmata. Under stones on the shore at Plymouth ; Leach, ' Ed. En. 

 vii. 403. 



MjERa, sub-genus. 



M, grossimana, (Can. Gam. grossimanus). In tide pools ; Mont. ' Linn. 

 Trans.' ix. 

 Ampithoe, sub-genus. 



A. rubricata. Rare ; Mont. * Linn. Trans.' ix. 

 Pherusa, sub-genus. 



P.fucicola. On fuci, South Devon; Leach, 'Linn. Trans.' xi. 

 Dexamine, sub-genus. 



D. spinosa. At Torcross ; Mont, and Leach, ' Linn. Trans.' xi. 

 Leucothoe, sub-genus. 



L. articulosa. Devon ; Mont. ' Linn. Trans.' vii. 

 Podocerus, sub-genus. 



P. variegatus. On fuci and corallines ; Leach, ' Ed. Ency.' vii. 433. 

 Jassa, sub-genus. 



J. pulchella. On fuci ; Leach, ' Linn. Trans.' xi. 361. 



J. (Gam.falcatus, Mont.); Leach, ' Linn. Trans.' xi. 



Section 2. Heteropa, with fourteen feet, of which the four 

 last only are adapted for swimming. 



Apsendes, sub-genus. 



A. Talpa, (Can. Gam. Talpa, Mont. ' Linn. Trans.' ix). 



Section 3. Decempedes, those having ten feet. 



Ancens, sub-genus. 



A. maxillaris, (Gnathea, Leach ; Can. maxillaris, Mont. 'Linn. Tr.' vii.) 

 Pranzia, sub-genus. 



P. cceruleata, (Oniscus, Mont. ' Linn. Trans.' xi. 



Order IV. — Lcemodipoda, present no distinct branchia at 

 the posterior extremity of the body, have scarcely any tail, 

 the last two feet being inserted at this end ; and they are the 

 only Malacostraca in which the two anterior feet form a por- 

 tion of the head ; their body is linear, composed of eight or 

 nine articulations ; feet terminated by a strong hook. The 

 females carry their ova imder the second or third segments of 

 the body, in a pouch formed of approximated scales. 



