ïç)î3-] S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 123 



mate is short, as in L. acanthocarpus , but the two lobes at the base of its exter- 

 nal margin are very unequal, the distal one being greatly expanded and more 

 than twice the size of the proximal. 

 2 . There are four short evenly-spaced spinules between the intermediate marginal 

 teeth and the movable submedians. The innermost of these perhaps repre- 

 sents the stout fixed submedian tooth which is found overlying the movable 

 spine in L. acanthocarpus , but in the present species is not any larger than 

 the three external to it. In the type specimen there are four pairs of fixed 

 denticles between the two movable submedians. 

 It may also be mentioned that the rostrum is a trifle longer proportionally than in 

 L. acanthocarpus , its lateral margins are rather more distinctly convergent anteriorly 

 and the antero-lateral angles are a little more obtuse. The eyestalks moreover appear 

 to be a trifle more slender and the cornea a little narrower. In other structural details, 

 notably in the form, carination and spinulation of the segments composing the uropods, 

 the two species are in closest accord. 



The colour pattern is, however, different, at any rate in the type specimen. The 

 two anterior dark bands on the carapace are indistinct and are composed of dark 

 speckles and mottling; the posterior one is very well marked, especially at the sides 

 where there is no trace of the pale enclosed spot which occurs in L. acanthocarpus. Kach 

 segment of the post-abdomen from the sixth thoracic to the fifth abdominal inclusive 

 bears two transverse dark bands. The anterior of these 1 is very narrow and does not 

 reach the lateral margin on either side, while the posterior, which is about as broad as the 

 pale band in front of it, is separated from the distal margin of the somite by a very 

 narrow pale border. The sixth abdominal somite possesses a single dark transverse 

 band close to the posterior edge. The telson bears four indistinctly separated dark 

 spots in much the same position as those of L. acanthocarpus , and in the pigmentation 

 of the uropods there is a close resemblance between the two species. 



I am not certain that the specimens which Nobili described in 1906 are correctly 

 identified. In his account there is no reference to the curious form of the external 

 lobes on the raptorial dactylus (much the most important structural feature possessed 

 by L. multifasciata) , while with regard to the colour he merely informs us that "la 

 coloration est celle des autres Lysiosquilla, par bandes transversales noires, dont trois 

 sur la carapace." From the description supplied it seems possible that the specimens 

 may really belong to L. acanthocarpus. 



Lysiosquilla valdiviensis , Jurich, described from a semi-larval specimen 14-6 mm. 

 in length, is probably synonymous with this species. The form of the raptorial claw 

 bears a very close resemblance to that of L. multifasciata; but the rostrum is without 

 trace of antero-lateral angles, and there are only three dorsal spines near the distal 

 margin of the telson. The eyes are larger; but this is invariably the case in very 

 young specimens and there is good reason to believe that the two characters mentioned 

 above are also due merely to immaturity. The description of species from semi-larval 



Balss notes that this band is obsolete in the specimen which he examined. 



