ADDITIONS AND CORRECTIONS. 341 



P. wilhelmi Pfr., iii, 53. P. hermanni Pfr., iii, 22. 



P. mazatlanica Pfr., ii, 204. 



Section Patulastra Pfr. (44). 



P. massoti Bgt. has been shown to be a Punctum. P. luseana 

 Paiva becomes a synonym of P. placida Shuttl., an earlier name. 

 The name luseana is repeated by error at foot of p. 47. P. tenuicos- 

 tata Shuttl. being preoccupied in Helix, Servain calls the species 

 shuttleworthi. 



Section Gonyodiscus (p. 45). 

 Add to list of species, p. 47, the following Palsearctic forms : 



P. machadoiMilne-Edw. P. kompsa Mabille. 



rotundata Morel. concinna Lwe. not Jeffr. 



v. azorica Mouss. P. rotundata Mull. 

 P. scutula Shuttlw. v. infracostata Westerl. 



P. omalisiana Bgt. abietina Paul., non Bgt. 



omalisma, err. typ., p. 47. P. chaperi West. Verh. k.-k. zool.- 

 P. putrescens Lowe. bot. Gesell. Wien. 1892, p. 27. 



P. ganoda Mabille. 



Section Lyrodiscus (p. 48). 



The type of this group is believed by Wollaston to be a Zonitid. 

 This is not unlikely, but the shells before me are dull, and the 

 animal is unknown. 



Section Lynda Wollaston, 1878. 



Lyrula WOLLASTON, Testacea Atlantica p. 382, type H. loweana. 

 Wollaston is disposed to class this elegant, spirally laciniate Pat- 

 uloid snail with the Madeiran H. lenliginosa. The single species is 

 from Lanzerote, Canary Is. 

 P. loweana AVollaston: (Not lowei Fer.) 

 torrefacta Lowe not C. B. Ad. 

 usurpans Furtado, iv, 40. 



Section lulus Woll., 1878, 



This (preoccupied) name is proposed by Wollaston (Test. Atlant. 

 p. 326) for ihePatulagarachicoensis Woll. (H.agrestis Lwe. in litt.*), 

 a minute form found in Tenerife, Canary Is. It is said to have rela- 

 tions with P. putrescens Lwe. of Palma, and P. bertholdiana Pfr., of 

 the Cape Verdes. P. garachicoensis has not been figured, and I have 

 seen no specimens. A variety submarmorata is described by Woll- 

 aston. 



