RATHBUN— MARINE BRACHYURA 221 



114. Actcea hellerii A. Milne Edwards (Plate 18, fig. 2). 

 Actcea hellerii Nobili, Ann. Sci. Nat., Zool. (9) iv. 1906, p. 256. 



Amirante, 30 fms., Sta. E 21 ; 1 $. Coetivy, 32 feet, brought up by diver; 1 $, 

 1 juv. : reef ; 2 $ 4 juv. 



$ (diver), C. 1. 10" 4 mm., C. b. 15 "3 mm. The other 3 males are nearly the same size ; 

 the young are very small, the largest 2'8 mm. long, 4'2 mm. wide. In all the specimens 

 there is a transverse groove extending inward from the antero-lateral margin at about § 

 the distance from the orbit to the widest part of the carapace. The grooves limiting the 

 gastric region and its divisions are well marked ; the groove subdividing each protogastric 

 lobe does not extend quite to its posterior border ; a groove limits the intestinal region 

 anteriorly. The smaller granules of the carapace are very many ; the larger ones much 

 less numerous, and absent from the cardiac region and the posterior fourth of the 

 carapace. 



115. Actcea savignyi (Milne Edwards). 



Actcea gramdata Alcock (3), p. 151. 



Cargados Carajos, 30 fms., Sta. B 3 ; 1 ? with isopod parasite in the branchial cavity : 



30 fms., Sta. B 8 ; 1 $ : 30 fms., Sta. B 9 ; 1 juv. : 30 fms., Sta. B 10 ; 1 ? : 28 fms., Sta. 

 B 19; 1 $: 28 fms., Sta. B 20 ; 1 $ juv. Saya de Malha, 55 fms., Sta. C 15; 1 ? 

 Amirante, 29 fms., Sta. El; 1 $, 2 ? ; 29 fms., Sta. E 2 ; 1 $, 2 ?. Seychelles, 31 fms., 

 Sta. F 2 ; 1 $ with Rhizocephalid parasite, 1 juv. : 34 fms., Sta. F 7 ; 1 ? juv. : 34 fms., 

 Sta. F 8 ; 1 <j>. 



116. Actcea boletaria, sp. nov. (Plate 18, figs. 3, 4). 

 Saya de Malha, 29 fms., Sta. C 19 ; 1 $ type. Amirante, 29 fms., Sta. E 2; 1 $, 

 2 juv. : 25 — 80 fms., Sta. Ell; 3 ? juv., one with Rhizocephalid parasite. Seychelles, 



31 fms., Sta. F 2 ; 1 $ : 34 fms., Sta. F 8 ; 1 ? juv. 



Type $, C. 1. (total) 12"2 mm., C. b. 18 mm. 



Carapace § as long as broad, posterior half flat ; antero-lateral margin much longer 

 than postero-lateral, which is concave. Surface nearly naked and closely covered with 

 tubercles formed of crowded granules largely fungiform, the interstices giving the whole 

 surface an eroded or pitted appearance. Furrows deep ; either side of the median furrow 

 there is a longitudinal furrow leading from the margin of the front to the anterior angle of* 

 the mesogastric region ; antero-lateral margin 4-lobed behind the orbit, lobes ill defined 

 and sub-divided. Front 4-lobed, outer lobes small. 



Ornamentation of chelipeds similar to that of carapace but lower and more fungiform, 

 fingers elongate, deflexed, grooved, rough at base, not gaping, prehensile teeth fitting 

 neatly together, tips crossing, colour running back on palm inside and out in male. The 

 ambulatory legs are sparsely fringed with hair ; their tubercles along the anterior margin 

 are sharp. 



Near A. nodulosa but antero-lateral margin longer, tubercles more depressed, fingers 

 longer, black colour on palm of male less extensive. 



