8 ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



Parasquilla meridionalis, new species 

 Plate 2. 



Holotype: OREGON Sta. 2249; 07°40'N, 57°34'W; north of Brit 

 fsh Guiana; August 31, 1958; 30/27 fms; 1? ; USNM 105989. 



Paratypes: OREGON Sta. 2267; 06°58'N, 56°02'W; north of 

 Suriname; September 2, 1958 ; 25 fms; 1 5 ; USNM 105990. OREGON 

 Sta. 2052 ; 04°03'N, 50°25'W ; west of Cabo Cagipore, Brazil ; Novem- 

 ber 13, 1957; 50 fms; IS ; UMML 32.1171. 



Measurements: The holotype is 92.2 mm in total length; the two 

 paratypes are 91.0 and 99.4 mm in total length. Other measurements, 

 holotype, in mm: carapace length, 23.2; length rostral plate, 2.8; width 

 rostral plate, 5.5; length telson, 16.0; width telson, 16.3. Other meas- 

 urements, $ paratype, OREGON Sta. 2267, in mm: carapace length, 

 22.1; h^ngth rostral plate, 2.6; width rostral plate, 5.7; length telson, 

 15.0; M idth telson, 15.8. 



Description : Dorsal surface of all portions of body minutely pitted 

 and corroded. 



Eyes large, cornea bilobed, with large mesial lobe and smaller lat- 

 eral lobe; eyes not extending to articulation of first and second seg- 

 ments of antennular peduncle. 



Rostral plate deflexed, almost twice as broad as long, with a prom- 

 inent longitudinal median groove in anterior half; rostrum completely 

 covering base of eyes and dorsal processes of antennular and ophthal- 

 mic somites ; lateral margins concave, anterolateral angles rounded ; 

 anterior margins converging at rounded, obtuse apex. 



Antennular peduncle over one-half median length of carapace. An- 

 tennal protopodite with one ventral papilla. 



Carapace without carinae except for marginals; marginals promi- 

 nent posteriorly and recurving dorsally, extending to the cervical 

 groove; cervical and gastric grooves present, with cervical groove dis- 

 tinct but reduced across dorsum of carapace; a distinct tubercle, just 



Plate 2. Parasquilla meridionalis, new genus, new species. 



Fig. 1. Female holotype, OREGON Sta. 2249, north of British Guiana, 

 dorsal view, xl.5. 



Fig. 2. Male paratype, OREGON Sta. 2267, north of Suriname, rostral 

 plate, x4. 



Fig. 3. Female holotype, raptorial claw, xl.S. 



Fig. 4. Female holotype, submedian denticles of telson, x4. 



I 



