NO. 4 schmitt: stomatopods 159 



San Francisco Reef, February 13; and 1 cf 1$, respectively, about 68 and 

 36 mm. long, at Venado Beach, February 26. 



Color: The color markings of alcoholic specimens still retaining 

 them in general resemble those of panamensis, inasmuch as the hind bor- 

 der of the carapace and the following somites of the body are dark 

 margined, except the 1st free thoracic and the 6th abdominal. The telson, 

 however, lacks the pair of small, outwardly turned dark-colored crescents 

 placed one either side of the median carina near its base ; also the greater 

 part of the penultimate joint of the outer branch of the uropod is dark 

 colored, while in panamensis there is some indication of color only toward 

 the hinder margin of this joint and along its median ridge; the terminal 

 joint in aculeata is practically without color, there being only a very small 

 bit along the proximal and proximal inner margin ; in panamensis the lon- 

 gitudinal % of its expanse next the inner margin is dark colored; the 

 outer third is whitish or without color; the blade of the endopod is about 

 % dark colored. 



There is a narrow band of dark color across the dorsum of the second 

 abdominal somite in aculeata between the submedian carinae and extend- 

 ing laterally for about ^ its transverse length to either side beyond the 

 submedian carinae. I do not particularly notice a comparable band of 

 color in panamensis, although it is indicated in some small, rather fresh 

 specimens taken by the Hancock Expeditions off Cabita Bay, Colombia. 

 The marginal lobes of the 6th and 7th thoracic somites are almost wholly 

 dark colored, while they seem to be without color in panamensis, except 

 for some isolated chromatophores found scattered everywhere in both 

 species. 



The carinae of the carapace, except the median, are indicated with 

 fine lines of color. The last 2 joints of the antennular peduncles of 

 aculeata are with little color except toward their distal margins ; the re- 

 verse is true in panamensis, in which the greater part of these joints is 

 dark colored and the distal margins light or without color; the antennular 

 flagella in both species show little or no color. 



Remarks: The marginal teeth of the telson of the figured type have 

 perhaps attained their extreme development ; the transverse fissure across 

 the median carina of the telson, near its base and so plainly marked in 

 the figured type, is already indicated in specimens of only 25 mm. in 

 length, and becomes more evident with increase in size ; in the correspond- 

 ing place on the median carina of even good-sized panamensis there is 

 only a very slight indentation. 



