THE DECAPODA 



267 



from the second and third segments of the h'ml). Coutiere, how- 

 ever, states that in some primitive Caridea the double proximal 



A. >3 



Moutli-parts of I'amJalus borealis (Caridea). (After Sars.) A. inanclible ; B, maxillnla ; C, 

 maxilla; D hrst maxilliped ; E, second maxilliped. e, proximal endite of maxilla (aceord- 

 mg to Hoas, thp small distal lobe alone represents the endite and the large proximal lobe does 

 not represent the i)roximal division of the endite in other Decapoda) ; en, endopodite • ei) 

 epipodite -ex, exopodite ; i, incisor piocess : m, molar process of mandible; mb, mastitrobranchia '; 

 p, palp ; ph podobranchia ; «■, scaphognathite of maxilla : *. lobe on exopodite of first maxilliped 



characteristic of Caridea. 



'P-rj 



Fig. 158. 

 A, maxillula of Penatius mramote; 1-4, palp of four segments; ex, exite connected with 

 proximal endite. B, first maxilliped of same ; 1-5, endopodite of five segments ; en, epipodite • 

 e.r, exopodite. (After Boas.) • ^ . 1 1 



endite can be seen to belong to the first segment, and that the 

 other two lobes are independent of each other, belonging respectively 



