478 THE VOYAGE OF H.M.S. CHALLENGEE. 



ectoderm," he says, " I have termed the ' stomodiieum,' and the corresponding passage 

 leading from the anus I similarly propose to call the ' proctodaeum.' These three primary 

 factors of the alimentary tract are most equally developed in the Arthropoda and some 

 MoUusca." 

 In Professor Lankester's Classification the Arthropoda are the " Branch. Gnathopoda " of the 

 " Appendiculata," which " include animals with lateral locomotive appendages, and usually 

 a segmented body," a group, "excepting that it has the addition of the Rotifera, nearly 

 coextensive with the Annulosa" of Huxley's Classification in 1869. 



1878. GoDET, Paul. 



Note sur le Gammarus puteanus. Bullet, de la soc. des Scienc. nat. de 

 Neufchatel. XL 2. pp. 284-5. 1878. 



Gives measurements. See also Note on Godet, 1873, in Appendix. 



1879. Hallee, Gottfried Otto, born May 30, 1853, died May 1, 1886 (Mile. A. Haller). 



Vorlaufige Notizen iiber die Systematik der in Mittelmeer vorkommenden 

 Caprelliden. Zoologischer Anzeiger. II. Jahrgang. Leipzig, 1879. pp. 230-233. 



Short descriptions are given of the following species, Protella major, n. s., subsequently recog- 

 nised by Haller as the male of Protella ^Aasma, Montagu ; Gaprella liparotensis, n. s. ; 

 " Caprella Helleri" n. s. ; " Cajprella Dohrni," n. s. ; Caprella elongata, n. s., for which, 

 and for the two preceding, see the next Note ; Caprella antennata, n. s., identified with 

 Caprella acanthifera by Mayer, who notices that Haller himself does not again mention 

 this species ; and lastly, " Podalirius KriJijeri," n. s. 



1879. Hallee, G. 0. 



Beitriige zur Kenntniss der L^modipodes filiformes. Mit Tafel XXI.-XXIII. 

 Zeit.scbrift fiir wissenscbaftlicbe Zoologie. XXXIII. Band. Leipzig, 1879. pp. 

 350-422. 



Of the genera Podalirius, Proto, Protella, and Caprella, Dr. Haller found Protella most, Poda- 

 lirius least, suited for his anatomical investigations. His discussion of the :Merve-system 

 should be read under the light thrown by Mayer's later investigations. In the section 

 headed " Sinnesorgane," Haller denies the existence of the " triehterformige Frontalorgan " 

 which Gamroth discovered lying immediately behind the origin of the upper antennje. But 

 the existence of this frontal- or nuchal-gland is reaffirmed by Mayer. After the discussion 

 of various hairs destined for sensation, Haller gives in his third section, " ELnige mikro- 

 skopische Beobachtungen iiber Haargebilde, welche theils zum Ergreifen und Festhalten, 

 theils zum Sehwimmen dienen." While, he says, the upper pair of antennaj is " stets und 

 iiberall Sinnesorgan," and therefore beset with all sorts of hairs for purposes of sensation, 

 the hinder pair does not always agree with it in this purpose. It often loses almost entirely 

 the importance of an organ of sense, and by way of compensation becomes destined to sup- 

 port the organs of locomotion. Hence arise swimming-antennse, as among the Copepoda. 

 In the genus Caprella it is possible to form two subgenera, one with the lower antennae 

 acting as organs of sense, the other in which they have become swimming organs. In this 



