DESCRIPTION OF SPECIES 99 



Larvae were found in the colonies from the Patagonian Shelf and Falkland Islands in February, 

 March, April, May and June, and in colonies from South Georgia in November, January and February. 

 Distribution. Subantarctic (Falkland Islands to Tierra del Fuego), Antarctic (South Georgia). 



Genus Amphicarpa Michaelsen, 1922 

 Amphicarpa diptycha (Hartmeyer) (Text-fig. 34, PI. V, fig. 3) 

 Distomus diptychos Hartmeyer, 1919, p. 87, pi. 2, fig. 48. 



Occurrence. St. 1686: Victoria, Australia, o m. 



External appearance (PI. V, fig. 3). The colony, which is about 5 cm. long, and rather less in 

 width, had been growing on the shell of a living mussel. For the most part the zooids are close 



as 



3.0 



Text-fig. 34. Amphicarpa diptycha (Hartmeyer) (St. 1686): Zooid. 



13-2 



