526 EEPORT OX THE ORDER STOMATOPOBA—BIGELOW. vol.xvii. 



six to uine intermediate, aud one lateral denticle; the cariiite and the 

 elevations at the bases of tlie denticles always distinct; never any 

 thif-'keniiig of tlie margin of the telson or of the abdomen in the males. 

 Remarks. — Say's descrii^tion of this sjiecies is very brief, and like 

 Gibbes, his conception of S. mantis seems to have been derived from a 

 fignre given by Ilerbst that Avas, I think, intended to represent 8. nepa^ 

 Latreillc. His description is colored by this idea. De Kay's figure is 

 very poor, but indicates that the outer edge of the dactylus is sinuate. 

 Miers pointed out that this species is extremely close to ^S'. mantis, 

 but may be recognized by the lateral processes of the first exposed 

 thoracic segment being elongated and curved forward, instead of being 

 straight. Brooks lias described and figured the first abdominal append- 

 age of the male. All of these authors, however, neglect characters 

 which separate this from closely related species. In order to compare 

 them we need to start with an adequate definition of S. cmpusa, and it 

 is with the hope of supplying this that I have introduced the above 

 diagnosis, founded upon the study of specimens from Beaufort, X. C, 

 preserved at the Johns Hopkins University, and on others from various 

 localities in the Isfational Museum. 



This species is so very near to S. mantis that Miers was at first 

 inclined to regard it as a mere variety, and it seems to me that this 

 is probably the correct view. Although very slight, there are, how- 

 ever, differences, which are constant in the specimens that I have 

 examined. As stated above, the lateral spine of the first exposed 

 thoracic segment is more curved than in S. mantis. The rostrum in 

 full-grown specimens of *S'. enqiusa is broader in proportion to its length, 

 and the corneal axis of the eye very nearly equals the jieduncular one, 

 while in *S'. mantis the corneal axis is about six-fifths the length of the 

 peduncular one. Large specimens of S. mantis^ of both sexes, have a 

 slight thickening at the margin of the telson that is almost altogether 

 absent in S. empnsa. 



Size. — Length of body of a largo specimen, 18 cm. 

 Locality/. — There are specimens in the National Museum from numer- 

 ous stations between Woods Holl, Mass., and Pensacola, Fla. 



SQUILLA MAjSTIS, Latreillc. 

 Squille manie, de Geer, M^m. pour servir ;\ Thist. des losectes, vii, p. 533, 1778. 

 SquiUa mantis, Latreille, Hist. Nat. Crust., vi, p. 278, 1802; Eucycl. Metb. 

 Hist. Nat., X, p. 471, 1825.— Miers, Ann. aud Mag. Nat. Hist. (5), x, p. 21, 

 1880. 

 Of this species, common in the Mediterranean, the Museum possesses 

 two males tjollected by Dr. D. S. Jordan at Venice, Italy (No. 5151, U. 

 S.N.M.), and a male and female from Naples, received from-Eev. A. M. 

 Norman (No. 14552, U.S.N.M.). 



SQUILLA I'ANAMENSIS. Bigelow. 

 SquiUa 2}finamimsi.s, Bigelow, .Tohus Hopkius l"ni\ . Circ, 88. 1891. 

 Diagnosis. — Squilla' with large triangular eyes having a slender stalk ; 

 SIX teeth on the dactylus of the raptorial claw; an ovate or ellip- 



