520 PATAGONIAN EXPEDITIONS I ZOOLOGY. 



Two specimens, the largest 10 mm. long, were taken by Mr. Hatcher 

 at Punta Arenas. 



SUCCINEA MAGELLANICA Gould. 



S. magellanica Gld., U. S. Expl. Exped., Moll., p. 24, pi. 2, f. 22 ; Strebel, 

 Zool. Jahrb., XXV, 1907, p. 161, Taf. 8, f. 99; ? Doering, Informe 

 Oficial Exped. Rio Negro, 1881, p. 62. 



The shell is ventricose, similar to the preceding, except that the apex is 

 not red. Type locality Orange Bay, but reported from numerous localities 

 between Punta Arenas and Navarin Island by Strebel (/. c.]. It has been 

 recorded also from the region of Sierra Ventana, above Bahia Blanca, by 

 Dr. Adolfo Doering, but there is a possibility that some similar form has 

 been mistaken for S. magellanica. 



SUCCINEA ORDINARIA E. A. Smith. 



S. ordinaria Smith, Proc. Malac. Soc. London, VI, 1905, p. 338, fig. iv. 

 A species with 3 to 3^ very convex whorls, length 10.25 mm., diam. 6, 

 length of aperture 6 mm. It is " apparently very like S. lebruni Mabille, 

 but without the sanguineous apex and rather more coarsely sculptured." 

 I have not seen this species, which is probably closely related to S. magel- 

 lanica. Admiralty Sound, Tierra del Fuego (Captain Crawshay). 



SUCCINEA MERIDIONALIS d'Orbigny. 



Succinea meridionalis d'Orbigny, Voyage dans I'Amer. Merid., pp.. 711; 

 Doering, Informe Oficial Exped. Rio Negro, i88i,p. 62 (var. cornea}. 

 Sierra de la Ventana (d'Orbigny). Swamps in the pampa north of the 

 Rio Negro (Doering, for var. cornea Doer.). 



SUCCINEA BURMEISTERI Doering. 



(Plate XLII, Figs. 2-6.) 



Succinea burmeisteri Doering, Malakozoologische Blatter fiir 1873, XXI, 



p. 59, Taf. 2, f. 15-19 (Rosario am Parana). 



"Gehause eiformig, zugespitzt, etwas bauchig, durchscheinend, gelb- 

 lich-hornfarbig, stark und oft unregelmassig runzelig gestreift, wenig 

 glanzend. y/ 2 ziemlich stark convexe und rasch an Weite zunehmende 

 Umgange ; der letzte etwas bauchig. Gewinde zugespitzt. Miindung 

 gerundet-eiformig, der aussere Rand des ziemlich breiten, obwohl etwas 

 undeutlichen Spindel-Umschlages mitdem Mundsaum zusammenhangend. 



