m 



h 



m 



I: , 



I 

 il 



il , 



502 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. 



Fig. 3-5. Adult. 



3. From ahovc. 



4. From below. 



5. From right sidf, 



6. Gyritiophihi/i porphjrUicun, part of right side of skull of larva, showin)^ 

 trabecnla, etc. 



PLATE XXXI. 



Spehrpca ruher, viscera, 5 , drawn liy 8. F. Baird. 



Fio. 1. Viscera, in situ, natunil nize ; eggs nearly ready for exiiulsiou. Lettering is 

 before. Ik. The heart removed. I'ca, aseending veiuj cava: J, auricii ; 

 VP, vena pHlmoiiulin ; v. ventricU'; Hii, bulbus arteriosus : cc.l, eaii.ili-i 

 couimuuis urterio.sus. 

 M. Fontanello of oviduct, near stouiach. 



3. Left ovary with corpus adiposum on left side. 



4. Liver; a. from below. 



5. Cloaca and kidney, with vasa efterentia reuis and vas deferens. 



f). Phthddon (jli(tino8iin, 5, kidneys, from l)elow: r « k' vasa elVerentia n mi- 

 stretched out ot jilace to mUow their course, (ui left of figun-. 



PLATE XXX IL 



Bones of L'rodela three times natural size; drawings by Prof. S. F. Baird. 



Fig. 1. .'^capular arch of one sideof 5/)e/e»7(es j-n/ifc whichhas just passed its nietaniur- 

 phosis; the branchiii- not (luite obliterated: Carlisle. Pa., .Tujie Vi. 1*49 



2. Humerus of the sanie. 



3. Cubitus and manusof the same. 



4. AmIiljjatomnpiDictatinii, posterior Ifg of larva just changing to the adult. 



PLATE XXXIII. 



Skulls of (ryriiiophiliis porphyriticiti^. 



Fig. 1-3. Skull of adult ■ rural size. 



1. Fromabu\e. 



2. From below. 



3. From left side. 



4-6. Skull of advanced larva, twice natural size, 



4. From above. 



5. From below. 



6. From left side. 



PLATE XXXIV. 



(Copied from W. K. Parker.) 



Fig. 1-4. Oyrhwjyhilus iwrplniriticits, larva-, much enlarged. 



1-2. Larva less advanced than that represented in Plate XXXIII, 



1. From above. 



2. From below. 



3-4. Larva still less advanced than that represented in tigs. 1,2. 



3. From abov^. 



4. From below. 



5-6. DesmognatliHH fusca, skull. 

 T). From above. 

 C. From below. 



