1170 JOURNAL, BOMBAY NATURAL HIST. SOCIETY. Vol. XX. 



1 . Normal flower of Clerodendronphlomidis (Nat. size.) 



2. Deformed flower of Clerodendron phlomidis, Lin f. 



containing' (Nat- size). 



3. Nymph of Paracopium cingalense, Walk, (much enlarged)- 



4. Adult Paracopium cingalense, Walk, (much enlarged). 



The nymphs (fig. 3) before the wings are fully developed are translucent 

 green ; just before maturity the insect is very light grey, almost white, and 

 darkens when mature (fig. 4). I omit any further description as that will 

 be found in full on the page quoted above. 



Coimbatore, IWi February 1911. C. E. C. FISCHER. 



No. 



XXIX.— NOTE ON THE RATE OF GROWTH OF BARNACLES 

 IN INDIAN SEAS. 



Mr. W. S. Millard has submitted to me for examination three large 

 specimens of the Acorn Barnacle {Balanus tintinnabulum, Linn.) and has 

 asked me to write a note upon them for the Society's Journal. As the 

 approximate age of these specimens has been ascertained, I avail myself of 

 the opportunity of compiling what is known as regards the rate of growth 

 of barnacles in Indian seas. 



It is well known that both Acorn Barnacles {Operculata) and the stalked 

 species (Pedtmculata) are hatched from eggs as minute free-swimming larvae 

 of the " nauplius " type. After a short period of active life, their form 

 changes and they settle down on some solid object, to which they finally fix 

 themselves, in this position they attain the adult form. 



Precise records of the rate of growth of barnacles in Indian seas are few, 

 and even as regards European waters further information of a detailed kind 



