X. D, 3 Kemp: Stomatopod Crustacea 173 



The single specimen of this scarce species agrees closely in 

 structure with Bigelow's detailed description ; but as in Nobili's 

 examples from the Red Sea, spines are found at the postero- 

 lateral angles of only the last 3 abdominal somites, and there is 

 no additional spine on the sixth somite on the inner side of the 

 large intermediate spine. The external spine of the bifurcate 

 process of the uropods is a trifle longer than the inner, though 

 the difference between the two is not nearly so pronounced as in 

 P. ornata. In this respect the specimen agrees with the type; 

 in the examples from the Red Sea the two spines are equal 

 in length. 



The eyes are noticeably larger proportionately than in the 

 allied species, and the ocular somite terminates anteriorly in 

 a sharp spine, which is visible between the bases of the eyestalks. 

 The dorsal process of the basal segment of the antennal proto- 

 podite is longitudinally channeled above, while the inferior 

 blade of the process (which is T-shaped in section) is not con- 

 cave in lateral view; the process, in fact, is precisely similar 

 to that found in P. ornata. 



The lateral truncate margin of the sixth thoracic somite is 

 more definitely sinuous than in P. ornata or P. oculata and the 

 >■ - shaped groove on the lateral wall of the first abdominal 

 somite is well defined. 



The color, well preserved in the Philippine specimen, is very 

 characteristic (Plate I, fig. 1). In place of the pair of eyespots 

 found on the carapace in P. ornata, P. oculata, and P. oxyrhyn- 

 cha there is in the present species a single median spot, black, 

 circular, and circumscribed by pale yellow. The ground color 

 of the specimen is dull maroon brown (probably much brighter 

 in life) with numerous small cream-colored spots faintly cir- 

 cumscribed by dark brown. These spots, which show a tendency 

 toward arrangement in transverse rows, are found in the poste- 

 rior third of the carapace, On the exposed thoracic somites, and 

 on all the abdominal segments except the last. The postero- 

 lateral comer of the fifth abdominal somite is black, the area 

 so colored being separated from the other parts of the somite 

 by a well-defined band of yellow. The posterior edge of the last 

 abdominal somite with the apices of its spines is blackish, and 

 between this border and the brown anterior portion of the somite 

 a narrow yellow band intervenes. The telson is blackish with 

 traces of a transverse yellow band in its middle; the bases of 

 each of the primary teeth are also yellow in color. The uropods 

 are conspicuously banded with yellow. 



