Mr. T. Davidson on Recent Terebratulae. 39 



Subgenus Kraussina, Dav. 



(The term Kranssia having already been made use of for some 

 other animal, the termination ina has been substituted for that 

 of the original designation.) 



40. Kraussina rubra, Pallas. Syn. Anomia promontorii bonce spei, 

 Chemnitz = T. algoensis, Sow. = 7 1 . rubra and T. rotundata, 

 De Blaiuville. Hab. South Africa. 

 ?41. Kraussina cognata, Chemnitz. Hab. South Africa. 



42. Kraussina pisutn, Val. apud Lam. Syn. T.natalensis, Krauss. 



Hab. South Africa. 



43. Kraussina Deshayesii, Dav. Syn. T. capensis, Adams and 



Reeve (not Gmelin). Hab. Cape of Good Hope. 



44. Kraussina Lamarckiana, Dav. Hab. Sydney and New Zea- 



land. 



Subgenus? uncertain (Gwynia, King). 



45. Terebratulal capsula, Jeffreys. Hab. Belfast Lough, and 



Etretat, Normandy. I can add nothing to what has been 

 stated by Messrs. Jeffreys, King, and Reeve with reference 

 to this microscopic so-termed species ; and it appears to 

 me that its generic and specific claims have not yet been 

 sufficiently determined. 



Genus? Morrisia, Dav. 



(The arrangement of the oral arms appears to me so different from 

 what we find in the other genera and subgenera of the class, 

 that I propose, at least provisionally, to retain it as distinct.) 



46. Morrisia anomioides, Scacchi. Syn. Orthis anomioides, 



Scacchi=7'. appressa, Forbes. Hab. Mediterranean. 



47. Morrisia Davidsoni, Deslongchamps. Hab. Mediterranean. 

 ? 48. Morrisia lunifera, Philippi. Hab. Mediterranean. I am 



not yet satisfied as to the value of this so-termed species. 



Genus Argiope, Deslongchamps. 



49. Argiope decollata, Chemnitz. Syn. A. detruncata, Chemn. 

 = T. aperta, De Blaiuville = T. dimidiata, Scacchi = 

 T. cardita, Risso = !T. urna-antiqua, Risso. Hab. Medi- 

 terranean. 

 In 1793, Helmintholish figured two species of Mediterranean 

 Argiope, of which one is no doubt intended for the A. 

 decollata of Chemnitz. In pp. 18, 19 of his 'Oss. Zool.' 

 (1833), Signor Scacchi describes two species of Terebratula 

 (Argiope) which he states to be interiorly different from 

 other Terebratulae. In the one, his T. dimidiata (A. de- 

 collata, Chemn.), he describes five septa in the smaller 

 valve, the three central ones being the largest ; while in his 

 Terebratula (Argiope) neapolitana he finds but one. This 

 agrees with the two divisions I pointed out in Deslong- 

 champs's excellent genus, the first being typified by A. de- 



