132 36 
of European specimens of Mod. barbata L.; but as the material at my disposal for 
comparison, was insufficient to decide this question, I sent some specimens to Pro- 
fessor Ep. v. MARTENS. He informed me that he considered them to be: “plumescens, 
Dunker; Cirssin beschreibt u. bildet sie ab, aber unter dem Namen tumescens, 
wahrscheinlich nur aus Irrthum (falsches Lesen).” The confusion introduced ‘by 
CLESSIN into science by his “Monographs” in the new edition of Martini & CHEMNITZ: 
“Conchylien Cabinet” is much to be regretted. Epc. Smirn mentions, in his report 
on “Alert’s” zoological results, a Modiola sp. (taken at Port Molle) “remarkably like 
the European M. barbata;” it is probably the present species. 
Modiola Philippinarum, Hanl. 
Modiola Philippinarum, Haney, Proc. Zool. Soc. London, XII, 1844, p. 15. 
_ - — Catalogue of rec. bivalve shells, p. 235, pl. 24, fig. 26. 
— _- — REEVE, Conchol. icon., X, Modiola, Sp. 1. 
— ~- o- RocHEBRUNE, Bull. de la Soc. Philomath. de Paris, *"/19 1881 (Repr.), p. 6. 
— philippinarum, — Epa. Smiru, Ann. and Mag. Nat. Hist., 7 Ser., XVIII, 1906, p. 254. 
Perna fulgida, H. Avams, Proc. Zool. Soc. London, 1870, p. 7, pl. 1, fig. 9. 
E. of Cape Liant, 9 fathoms, shells (1). Between Koh Rin and Cliff Rock, 15 
fathoms (2), Koh Kram, 30 fathoms (1'/2). 
Long. 2—41 mm. 
Distribution: — Persian Gulf (EpG. Smrrn), Red.Sea (Mac AnpREw, Cooke). 
— Poulo Condor (RocHEBRUNE), Philippines (ELERA), China (LiscuKe), Japan (STEARNS),” 
Amboina and Larentuka (vy. Marrens), Kei Bandan (Tapparone-Canefri), Jobi Isl. 
(Geelwinck Bay)?, Torres Strait (MeLtvitt & SranpeEN), Mast Head Reef, Queensland 
(HEDLEY). 
Ep. vy. Marrens® supposes that Mod. Rumphii, Phil. is synonymous with M. 
Philippinarum, Hani. In the specimens from the Gulf of Siam the interior is 
whitely-iridescent. 
Modiola Evansi, Smith. 
Modiola evansi, Epc. Smiru, Journ. of Conchology, X, 1903. p. 368. 
Tale Nawi in Lower Siam (RicH. Evans). 
This species does not occur in the collections made by the Danish Expedition. 
Epa. Smiru says with regard to the locality from which this species has been 
taken: “This semi-lake is probably brackish water, being almost enclosed from the 
sea, and having several rivers and streams running into it.” 
1 Report on the zoolog. collect. made in the Indo-Pacific Ocean during the voyage of H. M. S. 
“Alert”, 1881 —1882. Lond. 1884, p. 108. 
2 With reference to L. v. ScHrENcK’s statement concerning the occurrence of the species at North 
Japan, and its synonymy with M. modiolus L. ef. L. y. Scunenck, Mollusken d. Amur-Landes, p. 498, 
and C. E. Liscukr, Japanische Meeres Conchylien, 1, p. 156. 
* Rumphius Gedenkboek, 1902, Mollusken, p. 128 (20). 
