210 Mr. A. S. Hirst — Xotes on Scorpions. 



I. ongusttraudun, Key?., and /. vescus, Karscli ; I have not 

 seen the lv|)icnl spt'ciiucns ot these species, however. The 

 more important ditiercnces are given below. 



Isomelroi'des angusticaudua, Keys. 



Jsontrtroid^K nn(]u.*ticandus, Keyserling, Arach. Austral, vol. ii. p. I'.l 

 (1K.H4-89); Kraepolin, Das Tierreich, " Scorpiones et Pedipalpi," 

 p. 40 (18l>9). 



Fourth caudal segment with eiglit. grnnuhir ami will-marked 

 keels; surface grannhir, the granules larger than in the j)re- 

 ceding segments, with lov punctures. Surface ot" fifth caudal 

 segment with numerous punctures, ruguU)se. Pectinal teeth 

 twenty-three in number. Measurements in mm. : length of 

 tail (vesicle excl.) 23, of fifth caudal segment 6'5 ; breadth 

 of fifth caudal segment 3*5 ; total length -il. 



llab. A single exam|)le from Port Lincoln, Australia. 



Isomctroides vcscus, Kar.sch. 



Jnometrtu* rfitfcux. Knr.«ch, SR. fJes. naturf. Berlin, p. .W (1880). 

 Ifomriroides rfM-iit, Keyperling, Arach. Austral, vol. ii. p. 17 (188-4-89) ; 

 Kraepelin, Das Tierreich, "Scorpiones et Pedipalpi,' p. 40 (1899). 



Fourth caudal segment provided with eight indistinct keels; 

 devoid of granules and with distinct punctures. Fifth caudal 

 segment smooth and sliiiiy, with numerous punctures. 

 Pectinal teeth 21—25 in number. Measurements in mm. : 

 length of tail (vesicle excl.) 21*5, of last caudal segment G; 

 total length 39 ; breadth of last caudal segment 2*5. 



JIah. Kalgorlie near Coolgardie, W. Australia. 



Tityus Kraepelini, Pocock, 



Titv>u Kraepelini, Pocock, .\nn. & Mag. Nat. Hist. (7) x. p. .'^7!) 

 (1902). 



The name Kraepelini being preoccupied*, I propose that 

 of Pococki for this .species. 



llab. Abundant at Merida, also found at Chama, Venezuela. 



Family ScorpionidaB. 

 Diplucentrus nitidufi, sp. n. 



Colour. A very dark brown, manus paler, legs and under 

 Burl'ace of a much paler ctdour. 



• Borelli, BjII. Mu*. Toriuo, xiv. no. Uo (1899;. 



