MACRUROUS DECAPODA OF THE SUDANESE RED SEA. 359 



Genus Lysiosquilla, Dana, 1852. 



Lysiosquilla multifasciata, Wood-Mason, 1895. See Kemp, 1913, p. 122. 



(PI. 28. fig. 6.) 



Locality. Station VIII. B, 1 J 1 . 



Remarks. The specimen is imperfect, the last two segments of the abdomen, 

 and the telson having been broken off. Identification is, therefore, a matter 

 of some uncertainty. The raptorial claw (PI. 28. rig. 6), however, has the 

 characteristic form of L. multifasciata as described by Kemp. The dactylus 

 bears live teeth, including the terminal one, of which the penultimate is 

 short. The two lobes at the base of its external margin are very unequal, 

 the proximal quite small, the distal very much expanded. The colour of the 

 present specimen in alcohol is distinctive. The carapace shows three bands 

 of dark colour, two anterior paler ones, almost fused, and a posterior one, well 

 marked. The last three thoracic segments each has a single dark band, 

 occupying the posterior half of the segment. The first four abdominal 

 segments possess a single very dark transverse line in the centre third of their 

 posterior border. Above this line and separated from it by a pale line is 

 a rather indistinct broad dark band which does not quite reach the lateral 

 margins. From the postero-lateral corners of this pale transverse band, on 

 each side, there is a much darker band running to the lateral margins. 

 These latter bands have the appearance of being the lateral portions of an 

 interrupted band, the centre part of which is missing. There is a distinct 

 break in contour where these very dark bands meet the centre paler band, 

 suggesting that the latter represents an anterior and separate band of colour. 



Previously recorded from the Red Sea by Nobili (1906). 



Genus Gonodactylus, Latreille. 



Gonodactylus chiragka {Fabricius) . See Kemp, 1913, p. 155. 



. Localities. Station V., 1 ? , 60 mm. Station VI., 1 J 1 , 40 mm. 



Remarks. Both these specimens are of the variety represented by smitldi, 

 except that the median carina of the telson of the male does not end in a 

 spine but is obtusely rounded. 



A widely distributed Indo-Pacific species recorded from the Red Sea by 

 Miers, Kossmann, and Nobili. 



Gonodactylus demani, Henderson, 1893. See Kemp, 1913, p. 164, 

 pi. 9. figs. 108-111. 



Localities. Station VI., 1 ? , 22 mm. Station VII. G, 1 ? , 14 mm., 2 <$ , 

 14 and 19 mm. Station VIII. (.', 2 ? , 27 and 30 mm. 



