suter: on new Zealand patellid.e. 351 



5. Helcioniscus oenatus (Dillwyn). 



Patella ornata, Dillwyn: Descript. Cat. Recent Shells, vol. ii, p. 1029 

 (1817). 

 ,, nodosa, Hombr. & Jacq. : Ann. Sci. Nat. (2), toI. xvi, p. 191 



(1841). 

 ,, denticulata, E, A. Smith : Voy. Erebus & Terror, Zool., 



vol. ii, Moll., p. 4, pi. i, fis^. 26, not of Martyn 

 ,, denticulata, Huttou : Man. K Zeal. Moll., p.'l09 (1880), not 



of Martyn. 

 ,, niargaritaria, Reeve : Conch. Icon., fig. 74. 

 Helcioniscus ornatus, Pilsbiy : Man. Conch. (1), vol. xiii, p. 137, 

 pi. Ixviii, figs. 14-19; pi. xix, figs. 39, 40. 

 Specimens from Stonyhurst, South Island, have the apex quite 

 anterior. 



Dentition described and figured by Hutton in Trans. N. Zeal. Inst., 

 vol. XV, p. 128, pi. xvi, fig. B {P. detiticulata). 



Hah. — Throughout New Zealand, but more common in the south. 

 Subsp. inconspicua (Gray), Hutton. 

 Patella inconspicua, Gray : in Dielfenbach's N. Zeal., vol. ii, p. 244 

 (1843). 

 ,, luctxiosa, Gould: Proc. Bost. Soc. Nat. Hist., vol. ii, p. 150 



(1846), not of Hombr. & Jacq. 

 ,, inconspicua, Hutton : Man. N. Zeal. Moll., p. 107 ; P.L.S. 



N.S. Wales, vol. ix, p. 375. 

 ,, inconspicua, Hutton : Trans. N. Zeal. Inst., vol. xiii, p. 203 

 (1881) ; animal descr. 

 Helcioniscus ornatus, var. inconspicua, Pilsbry : Man. Conch. (1), 

 vol. xiii, p. 138, pi. Ixviii, figs. 20-22. 

 Hah. — Throughout New Zealand, one of our most common limpets. 



6. Helcioniscds strigilis (Hombron & Jacquinot). 



Patella strigilis, Hombr. & Jacq. : Ann. Sci. Nat. (2), vol. xvi, 

 p. 190 (1841). 



,, Magellanica, Hutton: Trans. N. Zeal. Inst., vol. xv, p. 128, 

 pi. xvi, fig. A, dentition, not of Gmelin. 

 Helcioniscus strigilis, Pilsbry: Man. Conch. (1), vol. xiii, p. 137. 



The situation of the apex is very variable. The type usually has 

 the apex at about the anterior third of the length, but my collection 

 contains specimens which have the apex at the anterior eighth of the 

 length. This species attains sometimes a rather large size; a specimen 

 from Campbell Island has the following dimensions : length 80, 

 breadth 68, height 39 mm. The muscle-scar is occasionally much 

 elevated, catenate. 



Hah. — From Tauranga to the Bluff ; Chatham, Auckland, Antipodes, 

 and Campbell Islands. The type is from the Auckland Islands. 



7. Helcioniscus eedimiculum (Reeve). 

 Patella redimiculum, Reeve : Conch. Icon., vol. viii, fig. 50 (1854). 

 ,, radians, Reeve : I.e., fig. 25, not of Gmelin. 



