NO. 4 schmitt: stomatopods 167 



Distribution: Heretofore known only from the Bay of Panama 

 from a green mud bottom in from 26 to 47 fathoms (Albatross Sta. 2799, 

 2803, 2804), but now also, as a result of the Hancock Expeditions, from 

 much farther north, off Petatlan Bay, Mexico, in 25 fathoms, and farther 

 south, off Cape Corrientes, Colombia, mud bottom, in 10 fathoms. 



Color: Among the more prominent markings of S. pana?nensis are 

 a pair of outwardly turned, dark-colored or black crescents or arcs of 

 small circles, placed one either side of the proximal end of the median 

 carina of the telson; similar crescents occur in S. bigelowi (p. 156), but 

 were not drawn into Bigelow's figure of his panamensis telson reproduced 

 here (fig. \3a) ; the terminal joint or blade of the exopod of the uropod 

 has its inner, longitudinal % dark colored, the outer % white or color- 

 less ; the terminal blade of the endopod for the greater part of its inner 

 margin and for more than half its outer margin is dark colored. 



The posterior margins of all free somites from the 6th thoracic to the 

 5th abdominal inclusive are margined with a very conspicuous, though 

 narrow, band of dark color, as are also the anterior and posterior mar- 

 gins of the carapace; 2 lines of color also mark the gastric grooves. The 

 antennal scale has its inner or fore edge also dark colored. There is also 

 a conspicuous spot of dark color on the upper margin near the anterior 

 end of the merus of the raptorial claw. 



Remarks: The several lettered varieties. A, B, and C, differentiated 

 by Bigelow from among his S. panamensis material all seem worthy of 

 specific rating. 



Already in 1917 Caiman (British Antarctic "Terra Nova" Expedi- 

 tion, 1910, Zoology, Vol. 3, No. 5, p. 139, fig. 1-3) described S. brasilien- 

 sis, which he believed, and which I feel certain, is identical with Bigelow's 

 "variety C." The characters stressed by Caiman hold for Bigelow's 

 specimen from off Cabo Frio, Brazil, also the type locality of Caiman's 

 material, 4c? 3?, 40 fathoms, May 2, 1913 (Sta. 42). Bigelow's speci- 

 men was dredged in 59 fathoms, December 30, 1887 {Albatross Sta. 

 2762, blue mud). Further, Hansen (Ark. Zool., Vol. 13, No. 20, p. 7, 

 1921) records a male of S. brasiliensis taken off the coast of Uruguay, 

 80 meters, December 12, 1901 (blackish gray clay). 



Variety A, in this paper, has been named for Dr. Bigelow in recog- 

 nition of his most helpful and valuable contributions to the literature of 

 stomatopods. Variety B is named S. tiburonensis for its place of origin, 

 Tiburon Island, Gulf of California. Variety B, aside from other charac- 

 ters, can at once be distinguished from typical S. panamensis by its dif- 



