Crustacea. 15 



Crustacea. 



40) Methueu, Paul W., Descriptioii of an Amphipod belonging to the Family 

 Talitridae, from the Wood bush , Transvaal. In: Proc. Zool. Soc. (London), 

 Pt. I, S. 109—111, 2 pL, 1913. 



Talitriator eastivoodae (gen. nov. et sp. n.) is oue the ürst Gammarids recorded 

 from the fresh-waters of South Africa, other than those near the sea. It resembles very 

 closely the type of the genus Tulitrus. J. T. Sann der s (Cambridge). 



41) Sextoii, E. W., Description of a New Species of Brackish- Water Gam- 

 marus (G. chevreuxi n. sp.). In: Journ. Mar. Biol. Ass. (N. S.) Vol. IX, Nr. 4, S. 542 

 bis 545, 5 figs. in text. 



Mrs. Sexton describes a new species of Gammarus which was fouud in brackish 

 ditches at Plymouth (England). It is a small species, very nearly resembling Gamma- 

 rus locusta. J. T. Saun der s (Cambridge). 



42) Stebbiiig, T. R. E., On the Crustacea Isopoda of the "Porcupine" Expe- 

 dition. In: Trans. Zool. Soc. (London) Vol. XX, Part, 4, S. 231—239, 3 pl. 



This is a continuation of a Memoir on the families Apaeudidae, Tanaidae and An- 

 thuridae coUected by the Porcupine which was published in 1886. The author here 

 gives descriptions of live species all of which are new and one has to have a new genus 

 established for its reception. The species are, Gnathia cristatijies sp. n., G. schistifrons 

 sp. n., G. sp., Akidognathia oedipus sp. u. and Thamhema amicorum g. et sp. n. They 

 were all taken in deep water of Spain and the West Coast of Ireland. 



J. T. Saunders (Cambridge). 



43) EalüiS, Heiuricli, Ostasiatische Decapoden I. Die Galatheiden und Pagu- 

 riden. (Beiträge zur Naturgeschichte Ostasiens, herausgeg. v. V. Doflein.) In: Ab- 

 handl. math.-phys. Kl. der k. bayr. Akad. d. Wiss., II. Suppl.-Bd., 9. Abhandl., 85 S., 

 2 Taf. u. 54 Fig. im Text. München 1913. 



Rein systematisch. Den Grundstock des bearbeiteten Materiales bildeten die reichen 

 Sammlungen Doflein s und Haberers; doch wurden auch den Museen Tokio, Moskau, 

 Bremen und Stuttgart gehörige Sammlungen von Crustaceen aus dem ochotskischen und 

 dem Behriugsmeer mitbearbeitet. Dabei wurde versucht, eine Zusammenstellung aller 

 bisher von Japan bekannten Formen zu geben. Eingehender behandelt werden 77 Arten 

 (nur aus diesen beiden Gruppen!), davon sind 9 neu, nämlich: Galathea muUilineata, 

 Uropti/chus granulatus var. japonica, Uroptychus sexspinosus, Parapagurus dofleini, Eu- 

 pagurus anomalus, Eupagurus trigonochirus var. paulensis, Porcellanopagurus japonicus. 

 Paralomis dofleini, Paralornis japonica. 



Die tiergeographischen Schlüsse sollen erst am Schlüsse der ganzen Bearbeitung 

 gezogen werden. Autorreferat. 



44) Smith, Gr. W. and Schuster, E. H. J., The Genus Engaeus or the Land Cray- 

 fishes of Australia. In: Proc. Zool. Soc. (London), Pt. I, S. 112—127, 13 pl, 1913. 



This is a monograph of genus Engaeus and gives an account of seven species {E. 

 fossor, E. affinis, E. victoriensis, E. phyJlocercus, E. fultoni, E. cunicularius, E. henii- 

 cirratuliis). At the outset the authors correct a mistake that one of them formerly made 

 by asserting that the genus Engaeus was probably derived from Parachoeraps hicarinatus. 

 He was deceived by the outside appearance, for a study of the gills and of certain 

 other anatomical features showed Engaeus to be related to Astacopsis: the resemblance 

 of Engaeus to Parachoeraps consisted merely in the absence of spines and ridges on 

 the body and hairiness of the mouth appendages, which are evidently due to conver- 

 gence following on a similar mode of life. This conclusion is far more iutelligible on 

 general grounds, that the original derivation of Engaeus from P. hicarinatus, and it 

 clears up all the puzzling features in the geographical distribution of these forms. We 

 can now explain clearly why Engaeus occurs as two species in Tasmania, although P. 

 hicarinatus is absent, because Astacopjsis occurs in Tasmania. The several species of 

 Engaeus are characterised by the great depth of the carapace, measured dorso-ven- 

 trally and by its arched roof-shaped form. The eyes are small and the abdomen is 

 reduced. The mouth parts and neighbouring regions are very hairy. The gills are of- 

 ten reduced especially the arthrobranch, while in some forms the last pleurobranch iß 

 entirely suppressed, a feature exhibited by no other Australian Crayfish. Again in 



