384 AliTHUR DENUi^. 



The head when viewed from above appears broadly and 

 squarely truncated between the bases of the antennae, one 

 of which has been accidentally broken off, the other pointing 

 forwards. The two cerebral gauglia and the eyes (with 

 pigment) are clearly recognisable. The antennae are well- 

 developed and annulated. Owing to the position of the 

 embryo (which is now mounted in Canada balsam) it is 

 possible to see only one of the oral papillae, and the jaws are 

 completely hidden from view. There are perhaps nine pairs 

 of walking legs, but it is impossible to count the exact 

 number. They appear as blunt outgrowths of the body, 

 ventro-lateral in position. No claws are yet visible, and little 

 or no pigment is yet developed in the integument. 



The second embryo obtained was at least eight and a half 

 months old from the time of egg-laying, and was already a 

 perfect young animal, differing externally from the adult only 

 in its smaller size and less deeply pigmented skin. It was 

 removed from the egg on April 14th, 1892, when only three 

 eggs remained in the hatching box, the others having been 

 taken away, as they showed signs of going bad.^ One of the 

 remaining three had been showing dark pigment inside for 

 some days past. This egg I removed and dissected. I found 

 the shell of a much darker (yellow) colour than when laid, a 

 good deal crumpled on the surface, and very soft, as though 

 beginning to decay away. The contained embryo was 

 removed and found to be in excellent condition. It was 

 enclosed in the usual vitelline membrane within the chorion. 

 As in the previous case it was tightly coiled up. When 

 uncoiled it measured about 5 mm. in length (exclusive of the 

 antennae) and 1 mm. in breadth. All the appendages were 

 developed, namely, antennae, oral papillse, jaws, and fifteen 

 pairs of claw-bearing legs. The eyes were conspicuous at 

 the bases of the antennae, and the antennae themselves 

 showed each about twenty deeply pigmented annuli. The 



' The majority of tlie eggs unfortunately perished, shrivelling up and being 

 attacked by a mould; which is hardly to be wondered at when we consider the 

 difficulty ot keeping tiie conditions suitable for so long a period. 



