On new Species of Histeridse. 2(55 



I SO POD A. 



XXVII. Genus Nerocila, Leach. 



38. Nerocila depressa, M.-Ed\v. (PI. XII. fig. 5.) 



Nerocila depressa, M.-Edw. Hist. Nat. Crust, t. iii. p. 254, pi. xxxi. 

 fig. 17 (1839) ; Schiodte & Meiuert, Naturhist. Tidsskrift, Kroyer, 

 Raek. iii. Bd. 13, p. 15, pi. i. figs. 10-11. 



Distr. Penang, Zamboango, Amoy. 



No. xxix. Hah. Buntal. 



A female. 



The figure given by Schiodte and Meinert exaggerates, I 

 think, the relative proportions of the telson, which appears to 

 be too short for its breadth (vide text, p. 16, where the 

 proportions are given as 8:7). The exterior branch of the 

 uropods, which is long and stylifonn, is pigmented with black, 

 and this pigmentation is continued up along the sides of the 

 abdomen, though it fades away on the sides of the thorax. 



Dim. : Greatest length 17*5 millim., greatest breadth 11 ; 

 breadth of telson 3*5, length of telson 4/25. 



EXPLANATION OF PLATE XII. 



Fig. 1. Goniosoma rosceum. Anterolateral border showing reduplicated 



first tooth. 

 Fig. 2. Fotamon tridentatum, var. incertum. Antero-lateral border. 

 Fig. 3. Fotamon bidiense. 

 Fig. 4. Callianassa Martensi. Frontal region and eyes. 4«. Third 



maxillipede. 

 Fig. 5. Nerocila depressa. Abdomen and telson. 



XXXV. — On new Species of Histeridse and Notices of others. 

 By G. Lewis, F.L.S. 



[Plate X.] 

 THIS is the eighteenth paper of a series on the Ilisteridce 

 published in this Magazine, and in these various memoirs I 

 have described about 360 new species, and in other publica- 

 tions, during the same period, I have noticed 150 more. In 

 and between the years 1884 and 1897 Herr J. Schmidt 

 described about 2-iO species, and after the year 1868, the date 

 of the Munich Catalogue, Maiseul described about 185, 

 Mr. L. Casey 48, and other authors about 157 species. These 

 figures represent in all 1130 species, which, with those of the 

 Munich Catalogue, 1151, bring the present number of species 

 recognized up to 2281. I have a new Catalogue in MS. 

 which I hope to publish shortly after a few points of synonymy 

 Ann. & Mag. N. Hist. Ser. 7. Vol. vi. 18 



