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Show 1900.] INSECTS A N D A R A C H N I D S F R O M SOMALILAND. 59 This form is evidently allied to tbe typical P. pallidus ; but until adults of the latter come to hand for comparison, it is impossible to say what the exact relationship between the two may be. The original examples of P. phillipsi are a pair of females obtained at Dooloob. Mr. Lort Phillips subsequently procured an adult male and a young female on the Goolis Bange of mountains. The former has 17-18 pectinal teeth, a longer tail and larger vesicle than the female, and lobate movable finger on the chela. The young one is as large as a co-type of P.pallidus, the carapace in the two measuring 11 m m . Moreover the posterior tarsal lobe is tipped above with bristles as in P.pallidus, not with a spine as in the adult P. phillipsi. But the shape of the hand in the young P. phillipsi is different, this organ being very noticeably narrower, and the tubercles on its upperside are much sharper and more strongly defined. The following actual measurements (in millim.) of the two examples may be advantageously compared :- Total length (without vesicle). Young of "1 ,., P. pallidus. J ' Young of 1 „Q P. phillipsi. J As will be seen, there is practical identity of measurements l except where the width of the hand is concerned. PANMNUS COLEI (Pocock). Scorpio colei, Pocock, Ann. Mag. Nat. Hist. (6) xviii. p. 180, pi. xi. figs. 2, 2 a (1896). Pandinus colei, Kraepelin, Das Tierr., Scorpiones, &c. p. 120 (1899). Loc. Berbera and Goolis Mountains (E. Lort Phillips). In British Museum. This species was based upon a subadult specimen from Berbera. Mr. Lort Phillips subsequently procured in the Goolis Mountains and kindly sent to the British Museum three additional examples, an adult male and female and a young specimen considerably smaller than the type. The characters upon which the species was based prove perfectly constant. The adult male and female are much alike ; the former, however, has tbe terga of the abdomen finely and closely granular posteriorly, whereas in the female they are nearly 1 The difference in total length in this and in many other cases is due to the degree of distension of the abdominal region. The length of this region is so very liable to alteration in accordance with the mode of preservation of the specimen after death, and depends so largely upon the fasting or full-fed, pregnant or not pregnant condition of the Scorpion, that the relative lengths of the tail as compared with the trunk, which Kraepelin, Karsch, and others so frequently quote, have but little importance. The length of the carapace, which does not vary, should be taken as standard for comparison. n Length of Length of Le"gt h o f Width of Carapace, i f - j , j movable , T 1 brachium. underhand. „ hand. nnger. 11 7-5 7 11 10 11 7-5 7 11 8-5 |