BLASTOCLADIALES 649 



the hyaline envelope which surrounded the structure when immature. 

 In cross section view the ridges appear as seven or eight spines" (Couch, 

 he. cit.). 



In larvae of Uranotaenia sapphirina, United States. 



Further observations by Couch and Dodge (1947: 76, pi. 17, fig. 4) 

 indicate that the mycelium is enclosed by a hyaline sheath. 



Coelomomyces sculptosporus Couch and Dodge 

 J. Elisha Mitchell Sci. Soc, 63: 73, pi. 17, figs. 1, 2; pi. 18, figs. 6-9. 1947 



Mycelium much as in other species; hyphae 4-17 [i thick, resting 

 sporangia 22-31 x 33-58 [i, most about 27 x 45 [x, oval, wall consisting 

 of two layers, an inner, smooth one and an outer, variously sculptured 

 one; outer wall with high, wide ridges (4.2-6.3 [i wide), usually in the 

 form of an irregular net, the meshes rarely circular, usually oblong or 

 elongated, rarely with the high ridges parallel on one side (usually three 

 to a side) and irregular on the other; in longitudinal section the ridges 

 standing out as distinct, rounded elevations, which may appear over 

 the margin of the entire oval or on one side only, with the opposite side 

 smooth; in median cross section the inner wall circular and smooth, the 

 outer showing five to seven wide, high, rounded elevations with a 

 smaller elevation 2-4 [x wide between each pair; a preformed longitu- 

 dinal groove extending along the middle of one of the ridges, which may 

 be the only longitudinal ridge. 1 



In larvae of Anopheles punctipennis and A. crucians, United States. 



Differing from Coelomomyces bisymmetricus in that the pattern of 

 the ridges on the wall is never the same on both sides, and from C. crib- 

 rosus in having resting spores bearing a few circles on only one side. 



IMPERFECTLY KNOWN SPECIES 



? Coelomomyces notonectae (Bogoyavlensky) Keilin 

 Parasitology, 19: 366. 1927 



Zografia notonectae Bogoyavlensky, Russkii arkhiv protistologii (Arch. Soc. 



Russe Protist.), 1: 118, pi. 10. 1922. 

 Mycelium branching, the branches anastomosing. Resting spores 

 ovoid with a thick smooth, unpitted (?) wall. 

 In adult back swimmers, Notonecta sp., Russia. 

 1 Revised for this treatise by J. N. Couch. 



