. Bulletin - United States National Museum. Science. 76 BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 1 Measurements of an average individual.—Length of body mm.; width of body mm.; length of nucleus mm.; width of nu- cleus mm.; diameter of endo- spherule mm.; cilia line interval, anterior mm., mid- dle mm., posterior mm. Massive chromosomes eight in number. This is a large species much like Protoopalina intestindlis in form, though somewhat more stocky. The ordinary individuals have two dumb-bell shaped nuclei in the anaphase condition, showin
. Bulletin - United States National Museum. Science. 76 BULLETIN 120, UNITED STATES NATIONAL MUSEUM. 1 Measurements of an average individual.—Length of body mm.; width of body mm.; length of nucleus mm.; width of nu- cleus mm.; diameter of endo- spherule mm.; cilia line interval, anterior mm., mid- dle mm., posterior mm. Massive chromosomes eight in number. This is a large species much like Protoopalina intestindlis in form, though somewhat more stocky. The ordinary individuals have two dumb-bell shaped nuclei in the anaphase condition, showing eight massive chromosomes in each end. One individual, with nuclei of es- sentially the same character, was found entering upon transverse fis- sion, and one other was found with a single nucleus in the same dumb- bell anaphase condition, a smaller individual, evidently just come from division. Thus it is indi- cated that fission is consummated while each of the two nuclei is dumb-bell shaped and in an ana- phase stage of mitosis. PROTOOPALINA HAMMONDII, new species. Type. — United States National Museum Cat. No. 16453. Host. — Scaphiopus hanunondii Baird, five infections, all in United States National Museum material; a, the type infection, from speci- men No. 9915, 44 mm. long, from Guanajuato, Mexico, 1877, Duges, collector; h, from specimen No. 36365, 63 mm. long, from Beaver City, Utah, May 24,1905, G. P. En- gelhardt, collector; c, from speci- men No. 52157, 25 mm. long., from Wyoming, Cooper, collector; d, from specimen No. 8327,32 mm. long, from Chihuahua, Mexico, Potts, collector; and e, in specimen No. 52149, 19 mm. long, from Springer-. Fio. 46.—Peotoopalina scaphiopodos, X 460 DIAMETEKS. IN THE DISTAL END OF THE ANTERIOR NUCLEUS IS A NDCLEOLOS WHICH MIGHT READILY, IN THE DRAW- ING, BE> MISTAKEN FOR A NINTH MACRO- Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colo
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