90 



Orbicula tenuis, Sowerby, reported from Chili and Port Lin- 

 coln : this latter locality is certainly erroneous, no collector 

 having taken it, so it is erased from our list. 



In vol. xi., op. cit., 1888, p. 69, Professor Tate added 

 Magasella cumingi, Davidson: and in vol. xiv., 1891, p. 26$, 

 Terebratula wyvillei, Davidson, dredged by the "Challenger" 

 in lat. 42° 22', which is a considerable distance off our shores. 

 This is now named Liothyris wyvillei. 



To the five species, belonging to five different genera 

 above recorded by Professor Tate, we are able to add in this 

 paper two previously-described species, viz., Kraussina 

 atkinsoni, Tenison-AVoods, and Crypt opora brazieri. Crane: 

 and five species hitherto undescribed, viz., Magasella vercoi 

 and M. jaffaensis and Cistetta australis, all of Blochmann ; 

 and Magasella radiata and Terebratulina cavata, both of 

 Verco, bringing our number up to twelve sjDecies belonging 

 to seven genera. 



NEW BRACHIOPODS FROM SOUTH AUSTRALIA. 



By F. Blochmann, Tubingen. 



Dr. Verco, of Adelaide, had the kindness to place in my 

 hands a large number of Brachiopods for classification which 

 he had collected off the coast of South Australia. For this 

 I tender him my best thanks. The material embraced, be- 

 sides well-known species from these waters, such as Magel- 

 lania fin retreat, Magasella cumingi and Kraussina lamarck- 

 iana, two Magasellas and one Cist ell a. About the first two, 

 Dr. Verco properly presumed that they were forms hitherto 

 unknown : the last he believed was Cistetta cuneata, which 

 from want of material for comparison is easily explicable. 

 This species is also new. I give below an accurate descrip- 

 tion of the three species, and remark as follows : —Some 

 authors question whether Brachiopods of the type of Maga- 

 sella are independent forms, and are only immature stages of 

 Terebratella — even though becoming sexually mature — but 

 I hold this view is not correct in all cases. Among the 

 examples of Magasella vercoi described hereafter, and also 

 among the examples of M . cumingi sent to me by Dr. Verco 

 are found, in considerable number, those which present all 

 the marks of quite full-grown animals, especially a striking 

 thickening of the shells in part, with loss of much of the 

 more delicate sculpture; so that any further development of 

 these forms is with certainty excluded. The genus Magasella 

 is to be retained. I will return to this in fuller detail in 

 another place. 



