NO. 9 manning: Atlantic stomatopod Crustacea 29 



Puerto Rico (Bigelow, 1902); Curasao (as S. intermedia; Manning, 

 1959) ; off Trinidad (as S. brasiliensis, USNM, OREGON Stats. 

 2208, 2209; Manning, 1959); Suriname (Holthuis, 1959). 



Alaterial examined: 

 OREGON Sta. 2208; 09°55'N, 60°53'W; southeast of Trinidad; Au- 

 gust 26, 1958; 34/35 fms;25 5,2?9 (USNM). 

 OREGON Sta. 2209; 09°45'N, 60°47'W; southeast of Trinidad; Au- 

 gust 26, 1958; 20/22 fms; IS, 2? ? (UMML). 



Measurements: Males, 49.0 to 62.1 mm, total length; females, 46.8 

 to 65.9 mm, total length. 



Description: Eyes large, bilobed ; rostrum elongate-triangular, with- 

 out median carina ; median carina of carapace not bifurcate anteri- 

 orly; anterolateral spines of carapace not extending to rostral base; 

 raptorial dactylus armed with six teeth, outer margin of dactylus a 

 simple curve ; mandibular palp present ; five epipods present ; lateral 

 process of fifth thoracic somite a broad spine, curved anteriorly ; lat- 

 eral processes of next two somites bilobed, anterior lobe triangular, 

 posterior lobe rounded ; anterior lobe of lateral process more promi- 

 nent on sixth somite than on seventh ; submedian carinae present on last 

 three thoracic and all abdominal somites; abdominal carinae spined as 

 follows: submedian, 5-6; intermediate, (2) 3-6; lateral, 2-6; marginal, 

 1-5; telson with prelateral lobes; denticles 3-5, 8-9, 1, outer submedian 

 denticle the largest; 8-9 movable spines on outer margin of penultimate 

 segment of uropodal outer branch, the last not reaching midpoint of 

 ultimate segment. 



Discussion : The rounded posterior lobe of the lateral processes of 

 the sixth and seventh thoracic somites, the smaller cornea, and the 

 elongate rostrum separate this species from S. lijdingi. 



Remarks: The present material extends the vertical range of this 

 species from 13 to 35 fms. 



Bigelow felt that his Puerto Rico material was probably the juve- 

 nile of S. intermedia, although he pointed out several differences be- 

 tween the Puerto Rico specimens and the larger specimens available to 

 him. 



The color is as follows: carinae and grooves of the carapace are 

 indicated by dark lines; posterior margin of the carapace, last three 

 thoracic somites, and the six abdominal somites are lined posteriorly 

 with dark pigment; second and fifth abdominal somites with a median 

 patch of dark pigment; anterolateral angle of sixth abdominal somite 



