. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 30 M. J. cle Guerne on the Asplanchna Herricki, sp. n. (Fig. 2.) Herrick, " Final Report ou tlie Crustacea of INIinnesota, included in tlie Orders CladoceraandCopepoda," pi. v. fig's. 8, 9 (in the Twelfth Annual Report Geol. Nat. Ilist. Surv. of Minnesota, 1884), and " Notes on American Rotifers," Bull. Sci. Labor. Denison Univ. vol. i. p. Gl (1885). Diagnosis.—Femina. Corpus lageniforme ; masilla? clnobus tantum ramis composita3, validas, margine interno f
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 30 M. J. cle Guerne on the Asplanchna Herricki, sp. n. (Fig. 2.) Herrick, " Final Report ou tlie Crustacea of INIinnesota, included in tlie Orders CladoceraandCopepoda," pi. v. fig's. 8, 9 (in the Twelfth Annual Report Geol. Nat. Ilist. Surv. of Minnesota, 1884), and " Notes on American Rotifers," Bull. Sci. Labor. Denison Univ. vol. i. p. Gl (1885). Diagnosis.—Femina. Corpus lageniforme ; masilla? clnobus tantum ramis composita3, validas, margine interno fere recto, unco ro- busto terminatoe, apice intcrue baud denticulato. Mas ignotus. Long, ? In the explanation of his plate v. Herrick asserts that his Asplanchna is hermaphrodite; but this is not probable. As to the resemblance between the present species and A. BrightwelU, indicated by the author in his second memoir, this simply shows that the comparison was not carefully made. We have only to glance at the masti- catory apparatus of the two types to ,, . '^ ^ <. 1 Trf J. l.^ Masticatory apparatus of Fig-. see how different they are. Locality. Minnesota, United States. Asjylanchna Herricki (after Herrick). Before Herrick, a German entomologist, Kramer^ well known for his works on the Acarina, had the opportunity (probably in seeking after the freshwater Acarina) of meeting with a species of Asplaiichiia. Examined and figured by Kramer, although imperfectly, tliis Rotifer has not received a name. The form of its maxillse appears, however, to distin- guish it from all its congeners. Asplanchna Kramerij sp. n. (Fig. 3.) Kramer, " Eine Bemerkung liber ein Raderthier ana der Familie der Asplanchneen," in Archiv flir Naturg. Jahrg, 187G, vol. i. pi. viii. figs. 1-4. Diagnosis. — Femina. Corpus globosum ; maxillse duobus tantum ramis compositse, curvatse, ad basin graciles, extremitate valida, cultriformi, margine interiore denticulato. Mas ignotus. Long:. 0*5 m
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