848 



ON MOLLUSKS FROM THE PERSIAN GULF. [jSTov. 13, 



and especially Mr. F. W. Townseiid, who, not content with giving 

 most clear particulars and explicit data Avitli nil his many dis- 

 coveries, also wrote out a preliminary list, which has proved of 

 much service. 



It will he desirahle that a supplement treating of the 'Addenda ' 

 and " Emendanda ' should some day he issued, as, since October 

 1901, the date of publication of the first portion of this Catalogue, 

 over 250 species, mam- of them new to science, have been brought 

 to light from these seas. Such interesting species, for instance, 

 as Riinula cumingi A. Ad., Pleurotoma navarchus M. & S., Can- 

 cellarla antiqiuUa Hinds, Conus (Conorbis) coromandeUcus Smith, 

 Terehra fuscociiwta Smith, Tric/wtropis pulcherrima M. & S., 

 Homalaxis cornu-ai)imonis M. & S., JJerthais intertexta M. & S., 

 many /Scalarice, and still more Pleiiroioviidcf, are among those to 

 be enumerated, whenever such a woi-k is taken in hand. 



EXPLANATION OF THE PLATES. 



Pio-. 



Plate LIII. 



Fi"-. 



1. S^xtiu/i/l lis i/Uiriauiliis. \>. 811. 



2. Cardiiuii, {Fragiim) centiim- 



lirat'um, p. 839. 

 3, 3«. JS^eUia leucedra, p. 817. 

 4,4 a. „ revimentalis, p. 817. 

 5. Cardhim. (AcantJioccirdia) 



nmanciise, p. 838. 



6. Cardiiiut {Acaiithucardia) 



e.vocliiiHi, p. 838. 



7. Mesodestna {Pajihia) halirein- 



en.se, p. 827. 

 8, 8 ff. Area {l^rupJiarea) hirh'i/aiia, 

 ]). 794. 



Fia-. 



Plate LIV. 



Fin-. 



1,1 fr. Pecfeii (J'ola) dorothere. 



p. 810. 

 2, 2 a. Area re<piiescens, ]). 793. 



3. JBarhatia {Acar) aveUannria , 



p. 797. 

 4, 4a. Area {Seapliarca) cihaiiua, 



p. 795. 



5. 6((. Siirbaiia (Aear) jiunyai'e/h/e, 



p. 797. 



6. tiir. Area (Suthjjarea) aiiacliiiui, 



p. 794. 

 7. y^iteiihi eonseiitanea , p. 791. 

 8, 8((. Braeliiiodojites (Horiiioiiij/a) 

 /.■uracil iciisis, p. 800. 



Plate LV. 



Fig. 



1. Peettmcuhis Jiernicus, p. 798. 



2, 2 a. Crenella adamsiana, p. 801. 



3, 3 a. Modiolaria ealceata, p. 801. 



4, 4 a. Crenella prcecellens, p. 801. 



5. Limcea JiightnditJa, p. 812. 



Fig. 



6. Liicina painela, p. 815. 

 7, 7 a. Amusshtm formosum. p. 807. 



8. JJi/iod.fiiuts /ninisendi. p. 802. 



9. Fee/eii rmis, ii. 808. 



10. 10 a. ., //n/ridciis, p. 809. 



Plate LVI. 



Fig. 



1. TeJIina (Mcera) rosamunda. 



p. 820. 



2. TelUnn {TeJlineUa) asmena. 



p. 818. 



3. TeUina [Telllniihi) chnidla, 



p. 823. 



4. TeUina (Mcera) miraci/Uiuiii 



p. 820. 



Fig. 

 5, 5 a. 2Iacoina si/ndesiiu/oiiics. 



p. 824. 

 (3. lia. S_i/ndesiin/a eistiihi, ]). 825. 

 7, 7 a. Corbnla siibqiiadrata. ].i. 843. 



8. Cardita ee/iinarkt, p. 813. 

 9, 9 a. Montaciifa ohliqtians, p. 817. 

 10. Seintilla piileJira,]}. SIS. 



