On (he Follicle-cells in Salpa. 89 



The subject might have been discussed at great length, but 

 fortunately Linnceus himself already (1758) has decided in 

 favour of the type specimen, as he, in putting the letters 

 " M. L. U./' signifying " Museum Ludovicse Ulric£e," after 

 the diagnosis, refers to that specimen, although it was not 

 described before 1764. Thus there can be no doubts in this 

 case. In 1895, when publishing his ' Revision der Taran- 

 tuliden,' Krtepelin was informed by letters from Carl Auri- 

 villius to which species ^^ Phalangium reniforme^^ belonged. 

 He was thus enabled to give the synonyms in that work as 

 follows : — 



Tarantula rem'fornis (Linnaeus). 



= Tarantula lunata, FaTjr. 

 =Phri/nus ceylonicus, C. L. Koch. 

 = P/iri/nus scaber, Gerv. 

 =Phrynichus reniformis, Karscli. 

 = Phryimcm Deflersi, Simou. 

 =-P}irynichus Jayakari, Pocoek. 



According to Kr^pelin * this species Tarantula reniformis 

 (Linn.) embraces several forms to which, by different authors, 

 have been given several different names. To judge from the 

 descriptions and from the table given by Pocoek, the Linnean 

 specimen most closely agrees with " Ph. Deflersi^'' Simon. 



As a curious fact, it might be mentioned that Thunberg re- 

 tained the Linnean name on the label belonging to the ' Mus. 

 Lud. Ulr. Reg.,' but to a specimen of the same kind belonging 

 to his own " donatio " he gave the name " lunatum^'' while he 

 named two specimens of ISleophrynus i~>idmatus (Herbst), 

 Krcepelin, remforme. In this, I suppose, he was influenced 

 by the descriptions given by Fabricius in his work ' Ento- 

 mologia Systematica,' t. ii. pp. 432 and 433, where the name 

 " reniformis " is used for a short-armed and " lunata " for a 

 long- armed form. 



XT. — The Follicle-cells in Salpa. 

 By Maynard M. Metcalf f. 



Through the courtesy of Professor Brooks, of the Johns 

 Hopkins University, I have been enabled to examine a 

 number of finely preserved embryos of several species of 

 Salpa^ and I desire, after briefly referring to certain points in 



* Abh. aus d. Geb. d. naturwiss. Bd. xiii. (Hambtu'g, 1895). 

 t From the ' Johns Hopkins University Circuhirs,' November 1897, 

 pp. 3-5. 



