1 882.] On the Homologies of the Crustacean Limb, 



Crustacea, either the malacost 

 this peculiarity is well brought 

 where the diminutive 

 size of. the thoracic gan- 

 glia, particularly in Lim- 

 netis and Esthetia is 

 noteworthy. The appa- 

 rent bulk of the body is 

 largely due to the large 

 size and nature of the 

 leaf-like or foliaceous 

 appendages, with their 

 broad attachments; the 

 latter peculiarity is char- 

 acteristic of the Bran- 

 chiopods in general and 

 the Phyllopods espe- 

 cially, and is quite dif- 

 ferent from the definite, resentingW exile*. 



small coxal articulations of the legs of Malacostraca or 

 poda. The ovaries or testes, according to the sex, form z 

 lated mass extending along each side of the digestive 

 ; the base of the head. Their relations ir 

 in Plate xxn, Fig. 2, and in Thavinocephalus ir 



I far for 



.of ( 



The segment. 



Crustacea in h 



the body, and i 



• body. — Phyllopoda are exceptional 1 

 in indefinite number of segments cor 

 lg in one family (Apodidce) more than 

 arthromere. While the normal nui 



i Plate 



: . 



