10 On some Copepoda from the Falkland Islands. 



form under consideration the antennules (fig. 8) consist of 

 eleven joints, the proportional lengths of which are, approxi- 

 mately, as shown in the formula appended : — 



Number of the j oints . . 1 2 3 4 5 6 7 8 9 10 11 

 Proportional leng-ths . . 2U . 6 . 12 . 5 . 4 . 7 . l;i . 11 . 6 . 8 . ll' 



In the fifth pair of thoracic legs the basal joint is mode- • 

 rately short and broad and carries a long seta on its outer 

 distal angle, the second joint is small and is furnished at the 

 apex with a long seta and a short spine (PI. I. fig. 3) ; a 

 considerable space occurs between the seta at the distal 

 angle of the basal joint and the point of attachment of the 

 second joint, as shown in the figure. The caudal segments 

 are fully twice as long as the last segment of the abdomen 

 (PI. II. fig. 9). 



Some of the Literature referred to in the Text. 



(i) 1875. Brady, G. S. Ann. & Mag. Nat. Hist. ser. 4, vol. xvi. 

 Describes Centropages hreviccmdatiis from Kerguelen Island. 



(2) 1905. Ekman, Rven. Schwedische Siuipolar-Exped. 1901-1903, 



Bd. v. Liel'erung 4. " Cladoceren u. Copepoden aus Antarkt. u. 

 subantarkt. Binnengewassern. 



(3) 1905. . " Die Systeniatik und Syiionyinik der Copepoden- 



pattiiDg Boeckella und verwandter Gattungen." Zool. Anzeiger, 

 Bd. XXIX. Nr. 19. 



(4) 1889. GuF.RNE, JuLKS DR, et Jules Richard. " R6vision des 



Calanides d'eau douce." M^moires Soc. Zo(,l. de France, tome ii. 



(5) 1901. MuAZKK, Al. "Hamburger Magnlhajnische Sammclreise." 



Siisswasser-Copepoden. 



(6) 1895. Popi'K, S. A., und Mrazkk, Ai,. " Entomostraken des 



Naturhistorischen Museums in Hamburg (2, Entouiost. v. Sud- 

 Georgien)." Jabrb. d. llamb. wissensch. Anstalten, xii. Beiheft. 



(7) 1897. IticuAUD, .Jules. " Eutouiostraca de la TAmdrique du 



sud." Mdmoires Soc. Zool. de France, tome x. pp. 2(53-302. 



(8) 1897. . " Sur quelques Entomostracds d'eau douce de envi- 



rons de Buenos Aires." Anales del Museo Nacional de Buenos 

 Aires, tomo v. 

 C9) 1894. Sars, G. O. " Contributions to the Knowledge of the Fresh- 

 water lOntomostraca of New Zealand, as shown by Artificial 

 Hatching from Dried .Mud.'" \'id. Selsk. Skrif. i. Math.-Natur. 

 Klasse, No. 5. 



(10) 1901. . " Contributions to the Knowledge of the Freshwater 



Entomo.straca of South Anierira, as shown fro'u Artificial Hatching 

 from Dried Material." Arcliiv for Mathematik og Naturvidenskab. 

 B. xxiv. Nr. 1. 



(,,j ];)0.'5. . " Pacifische I'lankton-Crustnceen." Zool. Jahr- 



bUchern, Bd. 19, Abth. f. Syst. 



(12) 190K. . " Frenh water lOntoniostiaca from Victoria, Southern 



\ustralia." .\rchiv for Mathematik og Natui videnskab. B. xxix. 

 Nr. 7. 



