STKES: KEYIEW OV THE GENUS PLECOTEEMA. 243 



I, of Sibuyan, I. of Cebu, Cagayan, I. of Mindanao, etc. (Hidalgo) ; 

 as F. clausum, Hawaii (Baldwin and Pease), Mauritius, Seychelles 

 and Andaman Is. (Nevill), Bombay (Fairbank), Australia (e. Coll. 

 As. Soc. Bengal), Taviuni (Mus. Godeffroy). 



6. P. monilifemm, H. and A. Adams. Proc. Zool. Soc. 1853 

 (1854), p. 120. 



The authors give no locality, but the tablet is now labelled "Borneo. 



7. P. punctatostriatum, H. and A. Adams. Proc. Zool. Soc. 1853 

 (1854), p. 121. 



jy^j. — Borneo (Everett), Macau (Mollendorff). M(!ssrs. Adams 

 give "Borneo," but the tablet is now labelled " Singapore." 



8. P. exaratum, H. and A. Adams. Proc. Zool. Soc. 1853 (1854), 

 p. 122. 



The tablet bearing this name in the Cuming Collection consists^ of 

 specimens of P. striatum, and even these specimens do not agree with 

 Messrs. Adams' vague original diagnosis. Probably the species must 

 be given up as unidentifiable. 



Hob. — Borneo (Mus. Cuming). 



9. P. helium, H. and A. Adams. Proc. Zool. Soc. 1854 (1855), 

 p. 37. 



The synonyms are : — 



1862. P. Souverbiei, Montrouzier. Souverbie in Journ. de Conch. 



X. p. 246. 

 1867. P. exiguum, H. Adams. Proc. Zool. Soc. 1867, p. 307. 

 1873. P. turritum, Garrett. Proc. Acad. Nat. Sci. Philad. 1873, 



p. 235. 



liTevill named^ a variety compressiuscula, from Burma (Hungerford). 

 There is a specimen in the British Museum from Mauritius, resembling 

 in form P. striatum, which is, in sculpture and position of teeth, 

 closely allied to P. bellum ; it appears to be distinct, but I forbear to 

 describe it from a single specimen. It may be the "new sp." 

 recorded,'- but not described, by Nevill from the Seychelles. 



Hah. — Mauritius (Nevill fide H. Adams) ; as P. Souverhiei, New 

 Caledonia (Garrett and Gassies), Andaman Is. (Nevill), Mayotte 

 (Marie), Yiti, Paumotu, and Gambler Is. (Garrett) ; as P. turritum, 

 Taviuni (Garrett). Messrs. Adams give "Philippines," but the tablet 

 is now labelled "Mauritius." 



10. P. rapax, Dohrn. Malak. Blatt. 1859, p. 204. 



Nevill named^ a variety minor, from Ross I., Andamans (Wood- 

 Mason). 



ffah.— Tahiti (Vesco), I. of Anaa (Pease), Massau (Issel), Aden 

 (Stoliczka and Nevill), Loheiyah (Jousseaume), Annesley Bay (W. T. 

 Blanford). Bombav (Fairbank). 



11. P.'9nordax,'''Do]iYn. Malak. Blatt. 1859, p. 204. 



1 Hand List Ind. Mus. pt. i. 1878, p. 223. 



2 Proc. Zool. Soc. 1869, p. 66. 



s Hand List Ind. Mus. pt. i. 1878, p. 22i. 



