1832.] Notes in Natural History. 557 



No. 2. A scorpion with 14 right, 15 left teeth in the pecten ; eyes 8 ; colour of 

 the preceding ; length 3£ ins. No rudiment of a tooth on the right plate. 8. 

 afer ? 

 No, 3. Pecten with 15 r., 15 I. teeth ; eyes 8 ; colour of last ; length 3§ ins. S. 



afer ? 

 No. 4. Pecten with 15 r., 15 I. teeth ;eyes8 ; colour of last ; length 3f ins. S. a/erf 

 These 4 appear to be the same, differing only in size, as the tooth, which in No. 

 1 is supplied by a knob, and in No. 2 is wanting, may have been broken off. 

 No. 5. Pecten with 16 r., 15 I. teeth ; eyes 8; colour the same as above ; a knob 

 on the left plate ; length nearly 1§ ins. ! 

 No. 5, which is not so much as half the size of Nos. 1, 2, 3 and 4, has neverthe- 

 less more teeth on the pectinated plates. Would not this argue, that the number 

 of teeth does not increase with the age of the animal, since the least in size has 

 often most teeth on the pecten ? 



No. 6. Pecten with 14 r., 14 /. teeth; eyes 8 ; length 3f ins. 

 Pecten with 14 r., 14 I. teeth ; eyes 8 ; length 2 ins. 

 Pecten with 14 r., 14 I. teeth ; eyes 8 ; length 3 ins. 



Pecten with 13 r., 14 /. teeth ; eyes 8 ; length 3J ins. A knob on the right 

 plate. 

 No. 7. Pecten with 13 r., 13 /. teeth ; eyes 8 ; length 1| ins. 

 Pecten with 13 r., 13 /. teeth ; eyes 8 ; length 3| ins. 

 Pecten with 13 r., 12 /. teeth ; eyes 8 ; length 1£ ins. 

 No. 8. Pecten with 12 r., 12 /. teeth; eyes 8 ; length 2£ ins. 



The natives say these scorpions inflict very painful wounds, attended sometimes 

 with danger. They are found in holes in the ground. 



The next species is much smaller and of a rusty brown colour, differing altoge- 

 ther in the shape of its forceps, which are more lengthened, and slender than in 

 the former species ; its general appearance also is much less forbidding. Its sting 

 is not dangerous, but attended with pain, and inflammation of the wounded part; 

 a servant however of mine, who was stung in the foot by one of this last species, 

 was laid up for nearly two months in consequence. 



No. 1. Pecten with 28 r., 28 I. teeth ; eyes 8 ; colour reddish or rusty brown ; 

 forceps long and slender, and very little bulging ; length 2| ins. of which the 

 tail is \\ ins. Scorpio Americanus ? 

 These are found on trees, underwood, &c. 

 No. 2. Pecten with 29 r., 29 /. teeth ; eyes 8 ; length 2f ins. 

 No. 3. Pecten with 30 r., 30 L teeth ; eyes 8 ; length 2\ ins. 

 No. 4. Pecten with 32 r., 32 I. teeth ; eyes 8 ; length 2 ins. 

 No. 5. Pecten with 33 r., 33 /. teeth ; eyes 8 ; length 2 ins. 



At first I was much inclined to think, that these scorpions constituted only 2 

 species, the first of which, the dark livid-green species, I looked upon as the 

 " Scorpio afer" in different stages of growth, and the second, or rusty brown 

 species, as the "Scorpio Americanus ." But on examining more closely I found 

 that the smaller ones had often more teeth than the large ones ; as for instance, 

 No. 5, which has 16 r., 15 I. teeth, is only 1J ins- in length ; while No. 8, which is 

 one inch longer, has only 12 r., 12 I. teeth. And again in the second species, Nos. 

 4 and 5, which are only 2 ins. in length, have more teeth than Nos. 1, 2 and 3, 

 which are § an inch longer. 



