440 MARINE BIOLOGY OF THE SUDANESE RED SEA. 
before me, though these latter show traces of colour on the fingers just as 
clearly as do the present specimens. 
23. THALAMITA ADMETE (Herbst, 1803), var. savieny1, A. M.-Hdw., 1861. 
See Alc. 1899 (1), p. 84; Nob. 1906, p. 206 ; Borr. 1902 (1), p. 202. 
Thalamita admeta, var. savignyt, Alcock, loc. ctt. 
Thalamita admeta, var. Savignyt, Nobili, loc. cit. 
? Thalamita admete, Rathbun, 1906, p. 874. 
Locality. Station V.H, 1 2 [63]; Station X.,1 9 [64]. 
Remarks. Specimen 64 is immature, C.l. 11:5 mm., C.b. 19 mm.; it has 
lost its left cheliped. Specimen 63 is non-ovigerous, but appears to be 
mature, C.]. 14 mm., C.b. 22°75 mm.; its front is damaged. 
The present examples have very strong resemblance also. to var. admete, 
Herbst, 1803, but they fall within the limits of variation of specimens 
referred by Nobili to var. savignyt. One may note (a) the transverse ridges 
of the carapace are in sharp relief ; (6) the division between the two frontal 
lobes is not broad and deep (in specimen 63 this region is injured) ; 
(c) certain particulars in regard to the hands in specimen 63 (the left cheliped 
is lost in specimen 64), namely: the inner surface of each hand bears a 
median longitudinal granular ridge and the narrower (left) hand has, in 
addition, a second row of small granules below this, and the lower portion of 
its inner surface is also granular; the lower margin of the larger hand is 
smooth save for a few obsolescent markings, that of the smaller is granular, 
the granulation being continuous with the granular portion of the lower 
part of the inner surface ; except for a few obsolescent granules the space 
between the two lower crests of the outer surface of the hand is smooth, a 
point of difference from Borradaile’s Key (Borradaile, 1902 (i), p. 202); 
(d) each finger has a well-marked groove along its inner surface and the 
dactylus has the suggestion of a second groove above the other proximally ; 
(e) in the larger specimen the 4th antero-lateral tooth of each side, though 
far from obsolescent, is smaller than the others, being about one-half the size 
of the third; in the smaller specimen it is rudimentary. From cases cited by 
Nobili it appears that the size of this tooth may be subject to considerable 
growth-change, assuming an increased relative size with the growth of the 
animal. 
Rathbun (loc. cit.) describes three forms from the Hawaiian Islands, 
edwardsi, Borradaile, admete, Herbst, and auauensis, Rathbun, sp. nov., which 
come within the admete group, and to each she gives specific rank. She 
does not agree with the application of Herbst’s name admete made by Alcock 
and by Borradaile, but believes it essential that forms included under it shall 
have a well-developed fourth side-tooth. One would like to know the sizes 
of the specimens which she discusses, and whether differences of the condition 
