352 Thos. II. Montgomery. 



L. 1. G.-L. 4. G., ganglia of ambulatory appendages. 



M. E., median eye. 



Med. L., median line. 



Mes., mesoblast. 



Mes. E., mesentoblast. 



M. G., midgut. 



Opt. O., optic ganglion. 



Peel., pedipalp. 



Ped. G., pedipalpal ganglion. 



Ped M., maxillary plate of pedipalp. 



P. L. v., postero-lateral vesicle. 



Pr., prominence of antero-lateral vesicle. 



Pill. C, invagination cavity of lung book. 



Pul. L., lamellae of lung book. 



R. Coel., rostral coelom. 



R. Mes.. rostral mesoblast. 



Ros., rostrum. 



So. Mes., somatic mesoblast. 



8p., accessory sperm nuclei. 



8p. Mes., splanchnic mesoblast. 



8to., stomodaeum. 



Sto. L., lateral lip of stomodaeum. 



8ul. A., sulcus anterior. 



Sul. v., ventral sulcus. 



Th. Ab., boundary of thorax and abdtmien. 



Vit., vitellus (yolk). 



Vit. C, vltellocyte (yolk cell). 



