732 Diesing. 



23. (16.) Gregarina oblonga DUFOUR. — Syst. Helm. II. 11. adde: 

 Animalcula solitaria ac sub conjugatione observata (Dufour). 



24. (18.) Gregarina sphaernlosa DUFOUR. - Syst. Helm. II. 11. 

 adde: 



Individua nonnisi solitaria (Dufour). 



25. (20). Gregarina Amarae FRANTZIUS. — Syst. Helm. II. 12. 

 adde: 



Animalcula sub conjugatioue observata (Hammerschmidt). 



26. (22.) Gregarina Dytiscorum FRANTZIUS. — Syst. Helm. II. 

 12. et 552. adde: 



Animalcula solum solitaria et navicellarum receptacula s. sporocystides 

 sunt observata (Frantzius). 



27. (22*.) Gregarina Scarabaei relieti LEIDY. 

 Receptaculum quadrangulare subpyramidale. Corpus fusiforme. 



Longit. !/ 5 — 1 TV" ; longit. recept. i / !l5 "' — i / i3 ' r '', crassit. corp. antrors. 

 Vis— V»'"; retrors. i/ 55 — 1/ 34 "'; crassit. recept. % 8 — i/ f '". 

 Gregarina Leidy: in Proceed. Acad. Philad. V. 208. 

 Gregarina Scarabaei relieti Le/% ibid. 287. et VIII. 47. 

 Habitaculum. Scarabaeus reüctus ; larva: in intestinis, 

 prope Philadelphiam (Powel). 

 Individua solitaria (Leidy). 



28. (22**.) Gregarina Melolonthae brunneae LEIDY. 

 Receptaculum sphaericum, antice et postice applanatum. Cor- 

 pus oblongo-ovale. Longit. corp. x j$"\ crassit. 1 / 9 '"; longit. recept. 

 %.'"; crassit. i/ 16 '". 



Gregarina Melolonthae brunneae Leidy : in Proceed. Acad. Philad. VIII. 47. 

 Habitaculum Melolontha bruunea: in intestinis, Philadel- 

 pbiae (Leidy). 



Animalcula solitaria ac sub conjugatione simul observala (Leidy). 



29.(29.) Gregarina curvata FRANTZIUS. -- Syst. Helm. II. 14. 

 adde: 



Individua nonnisi solitaria (Hammerschmidt). 



30. (22***.) Gregarina Folydesini virginiensis LEIDY. 



Receptaculum campanulatum, globosum v. subglobosum utrin- 

 que deplanatum. Corpus globosum, ovale, clavatum, spathulatum, 



fusiforme vel ureeiforme, postice obtusum. Longit. total. l /ss — VV"; 

 crassit. l / 8i — Vss'" > l° n g't. recept. ad Viao'"- 



Gregarina Polydesmi virginiensis Leidy : in Trans. Am. Phil. Soc. 2. 

 ser. X. 238. Tab. XI. 23—29. et in Proceed. Aead. Phil, VIII. 47. 



