PLATE 2. 



Illustrative of Pkofessoe Macalistee's Paper " On two new Species 

 OF Pentastoma." 



Vide Proceedings K. I. Acad., Vol. 2, Ser. 2, p. 62. 



Fig'. 1. Pentastoma imperatoris, sp. nov. female, nat. size. 



2. ,, ,, male, x 4 — a. mouth ; b. intestine. 



3. ,, ,, female head — a. papillae; b. dorsal 



wart. 



4. ,, ,, ,, claw, X 50, showing retractor 



and depressor muscles. 



5. ,, ,, ,, reproductive organs--^, coiled 



oviduct ; b. receptacula seminis ; 



c. ovarian ducts; d. ovary; e. uterus. 



6. ,, ,, male reproductive organs x 18 — 



a. oesophagus; b. accessory sacs con- 

 taining chitinous processes ; c. cir- 

 rhus ; d. sac of ditto ; e. accessory 

 gland ; /. point where the vas de- 

 ferens ends in the cirrhus ; (/. end 

 of cirrhus. 



7. „ ,, striped muscle from retractor of claw 



X 350. 



8. ,, ,, vertical section of part of body 



wall; a. chitinous epidermis; b. hy- 

 poderrais; c. longitudinal muscle; 



d. circular ditto ; e. lining mem- 

 brane ; /. body cavity ; g. wall of 

 oviduct ; h. ova. 



9. ,, ,, section of intestine x 15, partly dia- 



grammatic. 



10. ,, ,, portion of oviduct above uterus. 



11. Pentastoma aomjcis, sp. nov. female x 6. 



12. ,, ,, mouth. 



13. ,, ,, claw X 50. 



