Volume 42, Issue 5
November 1955, pages 195-237
pp 195-208 November 1955
pp 209-218 November 1955
pp 219-225 November 1955
Pestalotia mangiferæ has been observed on leaves ofMangiferœ indica at Allahabad and Madras. The pathogenicity of this organism has been established on leaves, stem and fruits of mango and symptoms have been described. Cross-inoculations onPsidium gujava, Mimusops hexandra, Butea frondosa, Eucalyptus sp. andCitrus sp. were unsuccessful. Storage of fruits at temperatures below 8° C. prevented fruit rot. Dusting the leaves with zinc sulphate controlled the disease but similar dustings on fruits failed to control the rot.
pp 226-237 November 1955
1. The skull ofOphicephalus is redescribed using current nomenclature.
2. The hyobranchial skeleton has been completely described. The hyoid cornu consists of a median basihyal, paired hypo-, cerato-, epi- and stylohyals. Cartilaginous interconnections exist between these elements. While the pharyngobranch of the first branchial arch inOphicephalus striatus, O. punctatus andO. marulius is continuous with its epibranch, inO. gachua it is free. The pharyngobranchs of the third and fourth arches are united.
3. The differences in the hyobranchial skeleton of the four species ofOphicephalus, viz.,striatus, punctatus, marulius andgachua have been noted to be of classificatory importance. The dentigerous patches (gill rakers) distributed on the hyobranchial skeleton show variation in the species ofOphicephalus studied.