ANNULOSA. 55 



is not properly referable to the Crustacea^ but that it is a peculiarly modi- 

 tied branchiate type of the Arachnida. 



SUB-CLASS III. MALACOSTRACA. 

 DIVISION A. EDRIOPHTHALMATA. 



ORDER I. L^IMODIPODA. 



Fam. a. Caprellidse. Caprdla (fig. 50), Protella. 

 Fam. b. Cyamidae. Cyamus. 



Fig. 50. Lsemodipoda. Caprella lobata, enlarged about six times. 

 (After Spence Bate and Westwood.) 



The Lcemodipoda are commonly regarded as a mere section of the 

 Amphipoda. 



(Spence Bate and Westwood, History of the British Sessile-eyed Crustacea, 

 vol. ii., 1868.) 



ORDER II. AMPHIPODA. 

 Section 1. Garnmarinse. 



Fam. a. Orchestiida?. Orchestia, Talitrus (Sandhopper, 



fig. 51). 

 Fam. b. Gammaridse. Gfammarus (Freshwater Shrimp, 



fig. 51), Sulcator, Kroyera. 

 Fam. c. Corophiidse. Corophium. 

 Fam. d. Cheluridse. Ckelura. 



Section 2. Hyperinse. 



Fam. a. Hyperiidse. Hyperia. 

 Fam. b. Phronimidse. Phronima. 



