268 Miscellaneous. 



MISCELLANEOUS. 



I^ole on Dr. llindes Tertiary Spoiijc-spicules. 

 By E,. T. Lendenpeld. 



Dr. HiNDE (" Oil the Si)ODge-remains in the Lower Tertiary Strata 

 near Oamaru, Otago, New Zealand," Joiini. Linn. Soc., ZooL 

 ToL xxiv.) has described and figured a number of sponge-spicules 

 from the Oaraara beds. 



In studying Hinde's figures of tetraxon and polyaxon spicules I 

 have come across several forms exceedingly similar to spicules 

 observed by me in recent sponges different from those mentioned 

 by Hindeas their nearest recent allies. These are the following: — 



ProtrUeii (pi. xiii. figs. 16, 17, p. 234), referred by Hinde to 

 Cramella cranium, is identical with the protrijen of Stelletta 7iis- 

 j)ida (Buccich). 



Dichotriten with short rhabdom (pi. xiii. figs. 7, 8, 11, 12, p. 234), 

 referred by Hinde partly to Stelletta and Geodites, is in every way 

 similar to the dichotrisen of Enjlus discophorus (0. Schmidt). 



Dichotricen with long rhabdom (pi. xiii. figs. 3, 4, 5, p. 233), 

 referred by Hinde to Oeodites, is similar to the dichutriien of Anco- 

 rina cerebrum (0. Schmidt). 



Anatrlcen (pi, xiii. figs. 19-24, p. 235) is identical with the ana- 

 trisen of Oeodia cydonium (11. v. L. in sched.) [i. e. Geodia gi(/<is, 

 0. Schmidt; Cijdonium Jiii^/m, Fleming; Geodia zetlandica, John- 

 ston, &c.]. 



Aster (pi. xiv. fig. 18, p. 239), compared by Hinde to that of 

 Geodia tuberculosa (Bowerb.), is doubtless a spicule from the ecto- 

 chrote of a species of Stelletta. 



Aster (pi. xiv. figs. 28, 29, 30, p. 237), compared by Hinde to 

 that of Stelletta intermi'dla (0. Schmilt), is identical with an aster 

 occurring in the lower portion of the cortex of the Geodia vydo- 

 nium (II. V. L.) above mentioned. 



A Contribution to the Knoudedye of the Male Sexual Oryans of the 

 Diptera. By N. Cholodkovsky, St. Petersburg. 



Our knowledge of the anatomy of tlie male sexual organs of the 

 Diptera is tolerably scanty. While the coarser structure of the parts 

 in question has been studied l)y L. Dufour and Loew, and we have 

 isolated notes thereon by other investigators also *, their finer con- 

 stitution has hitherto been entirely neglected. In order to supply 



* L. Dufour, " Anatomie geiierale des Dipteres,'* Ann. So. Nat. 3 ser. 

 t. i., 1844; L. Dufour, " Recherches anatom. etphysiol. surles Dipteres," 

 M^m. presentds a I'Acad. Sci. Paris, t. xi., 1851 ; il. Loew, ' floras ana- 

 tomicae. — Entomotomien," Heft i.-iii., Poseu, 1841 ; 11. Loew, " Beitr. 

 zur Keunt. d. innerea Geselilechtstbeile d. zweiti. lusecten,' Gerniar's 

 'Zeitschrift f, Entoaiologie,' iii., 1841; Suckow, "Die jleschlechtsorg. d. 

 Insecten," Hens. Zeitschr. f. organ. Physik, 2 Bd., 1828 ; Meigen, ' Syste- 

 mat. Beschr. der bekannten europ. zVeitl. lusecten," 1818-38, tab. 34, 35, 

 43; Ilegetschweiler, ' De iusectorum genitalibiis,' Turici, 1820; Swaiu- 

 merdam, ' Bibel der Natur,' 1752, tab. 42, 43 ; Burmeister, ' Ilaudbuch d. 

 Eutomologie,' 1832, i. Bd., pp. 215 230. 



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