Mr. C. J. Gahan on Long (corn Goleoptera. 19 



Attached to the exterior of several shells were some curious 

 dull green objects resembling fronds of Fucus. These con- 

 sisted of a thallus-like expansion firmly adherent to the 

 shell, ending in a free vesicle, the contents of which resemble 

 yolk of egg • they are perhaps eggs of some fish. 



Family Mytilidse. 



10. Mod tola, sp. 



An almost characteristic inhabitant of the mu I of the B ly 

 of Bengal, as at present explored, in and near 10 J fathoms, 

 is a species of Modiola with a very thin, transparent, polishe i 

 shell of an olive or dull yellow colour. The byssus is a large 

 bunch of fine silky threads saturated with tine mill Uiiiilly. 

 Met with in beds in thick mud in 89 to 93 fathom*, and on 

 sand in 98 to 102 fathoms. 



[To be continued.] 



H. — Notes on Lonyicorn Qoleoptera of the Group Cerambycinae, 

 with Descriptions of new Genera and Species. By CHARLES 

 J. Gahan, M.A., Assistant in the Zoological Department, 

 British Museum. 



[Continued from vol. vi. p. 2(31.] 



Since the first part of these notes was written Professor Chr. 

 Aurivillius, of Stockholm, has called my attention to two 

 species belonging to the group, which were described by 

 Dalman in Schonherr's ' Synonymia,' and which have 

 apparently been omitted from the Catalogue of Gemminger 

 and Harold. The first species — Lamia serricornis — is con- 

 sidered by Prof. Aurivillius to be identical with Prosphilus 

 pilosicollis, Thorns. ; and with this conclusion 1 quite agree. 

 The synonymy of the species will accordingly read : — 



Prosphilus serricornis, Dalm. 



= Lamia serricornis, Dalm. Schouh. Svnon. i. :j, Appendix, p. 1G0. 

 = Prosphilus pilosicollis, Thorns. 



Prof. Aurivillius was good enough to send me for examina- 

 tion some specimens of the second species mentioned above — 

 Lamia umbrina, Dalm. These were found to agree quite well 



•2* 



