AUEICULACEA. 223 



14. Pythia lessoni, Biainy. 



[ = p. savaiensis, Mouss.J 



4 Vavan, Friendly I. ; ex c. P. L. Layard, Esq. 

 1 Savay, Ovalau ; ex Musenm Godef&oy. 



8 Mare, Loyalty I. ; ex c. F. L. Layard, Esq. 



var. striata, Rv. 



30 Galathea Bay, Katchall and Teressaj coll. Dr. F. Stoliczko. and 

 F. A. de BoepstorfE, Esq. 



var. (prox striata). 



1 Great Cocos L ; coll. Dr. P. Stoliczka. 



5 Borneo Strait ; coll. Dr. P. Stoliczka. 



Grenus PLECOTREMA, B.. and A. Adams, (type P. 

 clausa, H. and A. Ad.). 



1. Plecotrema exigua, H. Ad. 



[? = p. sowerbei, var.] 

 16 Troii d'Eau donee, Mauritius (type); coll. G. Nevill, Esq. 



2. Plecotrema sowerbei, Montr. 



1 Andaman I. ; coll. G. Nevill, Esq. 



var. compressiuscula. 



1 Table I., Burma (type var.) ; coll. Dr. Hnngerf ord. 



3. Plecotrema cumingiana, Bianford. 



1 Irawady Delta (typical) ; coll. W. T. Bianford, Esq. 



4. Plecotrema striata, PMl. 



The type of Bronn's Genus Laimodonta, not of Adams' Genera. 

 [:= inoBqualis, C. B. Ad.] 

 5 Sandwich I. ; coll. H. Fease, Esq. 



6. Plecotrema mordax, Dohm. 



1 Pomaulax ; coll. H. Pease, Esq. Judging from this single specimen, 

 fairly separable from the next form. 



6. Plecotrema rapax, Dohrn. 



{fide Jick. = P. Tnordax). 



1 Annesley Bay; coU. W. T. Bianford, Esq. 

 3 Massaua ; coll. Artnro Issel, Esq. 

 12 Aden ; coll. Dr. P. Stoliczka and G. Nevill, Esq. 



