374: Mr. P. Cameron on littoral species which must be regarded as undoubtedly "bipolar" is exceedingly limited, and that of abyssal and pelagic forms is also very restricted. Without entering in this brief notice upon a discussion of the different views as to the cause of the " bipolarity/' I wish only, when recording a new " bipolar " crustacean, to express my agreement with Chun, when he says * : — " Wenn wir audi bis jetzt nur ein sicher beglaubtiges Beispiel auzufiihren vermogen, dass identische Arten beider polaren Gebiete durch die ganze Breite des Oceans die tieferen und kiihleren Regionen bevcilkern, so wird man immerhin nicht umhin konnen, die Beweiskraft desselben unzuerkennen und rnir zuzugeben, dass heute noch ein Austausch zwischen den polaren Faunengebieten stattHndet. Ich bin fest iiberzeugt, dass eine (leissige Ausnutzung der Schliessnetze auf s|)ateren Expeditionen nicht nur neue Beispiele fiir einen Zusammen-hang der den kalten Gebieten eigentiimlichen pelagisclieii Organismen liefern, sondern audi nocli nianchen Fund von allgemeiner Tragweite darbicten wird." It is only to be expected that " die Deutsche Tiefsee-Expedition," the leader of which was Professor Chun, will yield important facts in this respect; and it is therefore that everyone who is interested in these questions looks forward with the utmost curiosity to the scientitic results of that great expedition. Lund, March!', 1001. XLIX. — Descriptions of Seventeen new Genera of Iclineu-monidaj from India and One from Australia. By P. Cameron. [Contimied from p. 284.] Pachyjoppa, gen. nov. Antennas in both sexes longer than the body, in the female distinctly narrowed at the apex, in the male pilose, serrate towards the apex. Areolet oblique, the nervures united above ; the apex of the wings with a cloud. Clypeus convex, not separated from the face by a suture. Labruni broad, pro-jecting. Mandibles with two unequal teeth, the upper longer and sharper than the lower. Occiput sharply margined. * " Die Bezielumgen &c.," p. G2.
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