458 MARINE BIOLOGY OF THE SUDANESE RED SHA. 
later records have been made by Nobili, 1906, p. 271, and Nobili, 1907, 
p- 129; see also Cymo melanodactylus, Stimpson, 1907, p. 59. I take this 
opportunity of pointing out that the specimen recorded from Ceylon by 
Laurie, 1906, p. 406, under the name ot Cymo andreossyi also belongs to 
var. melanodactylus. 
Nobili found transitional conditions of finger-coloration both in Red Sea 
specimens and in examples from the Persian Gulf. 
Genus Pinumnus, Leach, 1815. 
48. PrtumNus propinquus, Nobili, 1905. See Nobili, 1907, p. 140. 
Pilumnus propingquus, Nobili, 1906, p. 277, pl. 9. fig. 7. 
Localities. Station VIL. B, 2 g [238, 239], 2 9 [240, 241]; Station X., 
1 go [242], 2 9 [243, 244] ; no locality given, 1 g¢ [245]. 
Remarks. g C.is. are 5, 6, 6°75, and 8:75 mm. respectively ; 9 C.ls. 4°5, 
4°75, 5°25, and 6 mm. respectively. The largest g (245) has C.b. 12 mm., 
so that C.b.+C.J.=1:37 ; frontal b. of same specimen 3°75 mm. without the 
inner orbital angles and 5 mm. if the latter be included ; distance between 
outer orbital angles 8°75 mm. These measurements agree very well with 
those of the specimen described by Nobili. 
In the present specimens the armature of the chelipeds and walking-legs is 
less emphasized than in Nobili’s description of forms from the Persian Gulf: 
thus (a) they have in general on the meropodites of the walking-legs only 
the distal spine of the upper border and this is in a few instances replaced by 
a blunt tubercle ; Nobili calls attention to the variation in the degree of 
spininess of the meropodites in his forms from the Persian Gulf and notes 
that the meropodites were without spines in his Red Sea (Djibouti) examples; 
(6) the tubercles of the wrist and upper part of the outer surface of the hand 
are as a whole conical and pointed; some of them, indeed, more particularly 
on the smaller hand, are elongated, but very few, and in some specimens 
none, could be called spiniform ; (c¢) in all the subhepatic tooth is present, 
but it tends to be tubercular rather than spiniform ; (d) none of the spines 
is blackish. 
In all except the 2 241 it is the right hand which is the more massive. 
Genus ActumNus, Dana, 1851. 
49, AcCTUMNUS SETIFER (de Flaan, 1835), var. TOMENTOSUS, Dana, 1852. 
See Alcock, 1898, p. 202. 
Actumnus setifer, var. tomentosus, Laurie, 1906, p. 408. 
Actumnus tomentosus, Alcock, loc. cit. 
Actumnus tomentosus, Nobili, 1907, p. 132. 
Localities. Station V. D, 1 ¢ [246], 4 9 [247-250]; Station VII. B, 19 
[251]; Station X., 1 ¢ [252]; no locality given, labelled ‘“‘ Trials I.,” 2 9 
