@inbook {5372, title = {On Haplodiscus piger.}, booktitle = {Report 57th Meeting British Association for the Adv. of Sc. held at Manchester 1887.}, year = {1887}, month = {1887}, pages = { - 740}, publisher = {London}, organization = {London}, keywords = {Haplodiscus orbicularis, Haplodiscus piger, Haplodiscus ussowi}, author = {Weldon,WFR} }