556 



BULLETIN 54, liNITED STATES iSTATIONAL MUSEUM. 



luarg'in.s of the fifth segment; it is rounded posteriorlx . :in(l witii or 

 without a minute excjn ation. 



Fig. 603.— Peobopyrus 

 floridensis. first 

 lamella of maksu- 



PIUM. X 10. 



Fig. 602. — Probopyri's floridensis. a, Dorsal view of female. (;, Ventral view of same, x 12. 



The pleopoda consist of tive pairs of (louble-hranched lamellar 

 appendages. 



The incubatory lamella^are large, encircling the incubator}^ pouch, 

 leaving only a small opening into the interior. The tirst pair of plates 

 have the terminal lobe of th(^ distal segment straight. 

 All the legs have a well rounded expansion or 

 carina about the middle of the basis, 



Male with all the segments of the thorax well 

 defined and widely separated at the sides. Body 

 narrow, elongate, nearly three times as long as wide. 



The abdomen has all the segments 

 well defined at the sides, Imt fused 

 in the middle of the dorsal surface. 

 Length almost equal to the breadth. Terminal seg- 

 ment well defined, rounded posteriorly, and extending 

 beyond the lobes of the preceding- 

 segment. The lateral margins of all 

 the segments are rounded. Pleopoda 

 are present in the form of pairs of 

 small rounded processes, a pair on 

 each segment of the abdomen. Eyes 

 present. 



One specimen was collected by Mr. 

 W. C. Kendall at Satsuma Island, 

 above St. Johns River, Florida; parasitic on Palse- 

 tnonetex cxUijus Stimpson. Two other specimens 

 were obtaini^l by the U. S. Bureau of Fisheries steamer Alhatroi^H at 

 Little River, Miama, Florida; parasitic also on Palixmonetes exilipes 

 Stimpson. 



Type.—C^t. No. 29090, U.S.N.M. 



Fig. 604.— Peobopy- 

 rus floridensis. 

 Leg of sixth pair 

 of adult female. 

 X 39. 



Fig. 005.— Probopy- 

 Rus floridensis. 

 Male, x 41. 



