NO. 4 schmitt: stomatopods 221 



Original description (translated from the Italian) : "This new spe- 

 cies is related to oerstedii and like it has the accessory carina which dis- 

 tinguishes it from chiragra. From this and oerstedii [the new species] 

 is easily distinguishable by the presence of spinules on the carinae of the 

 telson. On the three medial carinae and on the anchor (that is found in 

 this species as in [both] oerstedii and typical chiragra) the spinules are 

 variable, in the two specimens from Darien reduced to tubercles, in 

 the specimen from Punta Santa Elena very distinct. Those on the 

 carinae [or crests] that terminate in the two [sub-] median projections 

 [or marginal teeth or spines] of the telson, and on the accessory carinae 

 of Hansen are most distinct, and in the case of the first named carinae 

 form a double series. 



"The rostral plate in G. chiragra has the external [the antero-lateral] 

 angles muticous (f. typica de Man = var. A Borradaile) or acute and 

 anteriorly produced (var. acutirostris de Man = var. C Borradaile) ]^^ 

 G. oerstedii from St. Thomas has the external [antero-lateral] angles 

 muticous and 'plain-like.' In G. festae these angles are acute, 'slender,' 

 and anteriorly produced." 



Measurements: The largest specimen of the species I have seen is 

 a specimen contained in a lot collected by Dr. S. F. Hildebrand from 

 tide pools on the San Francisco Reef, near Panama City. It is female 

 of 49 mm. in median length exclusive of the rostrum; rostrum nearly 4, 

 carapace 12. The figured specimen is 43 mm. long on the median line. 



Remarks: Several of the close allies of G. oerstedii are known to 

 have a spinulose telson, but none perhaps so spinulose a telson as G. festae, 

 at least on the Pacific side of America. G. oerstedii var. spinulosus from 

 Barbados and Antigua in the Atlantic most nearly approximates G. festae 

 in this respect. The latter, nevertheless, is very close to G. oerstedii 

 (s.s.) in the conformation of the rostral plate, the anterolateral angles 

 of which are broadly rounded in both forms. In G. festae, on the other 

 hand, they are sharply angulated and acutely pointed, although in some 

 smaller specimens only subacute. Nevertheless, I do not know just what 

 Nobili had in mind when he spoke of them as slender, "esili," unless he 

 meant to indicate that in contrast to true oerstedii the anterolateral angles 

 were narrowly acute or drawn out to a sharp point, as they are. All of the 

 West American relatives of G. oerstedii with spinulose or dorsally spined 

 telsons have the anterolateral angles of the rostral plate more angulated 

 and often acute ; only in bahiahondensis are they truly spiniform. 



78 In A. Willey's Zool. Res., Pt. 4, p. 401, 1899; now G. acutirostris, see Kemp, 

 Mem. Indian Mus., Vol. 4, No. 1, p. 163, 1913. 



