00484nam a2200145 a 450000500170000000800410001702000150005804100080007308200080008110000510008924500980014026400550023830000110029370000340030420260717091429.0260717s1987    ii            000 0 eng d  a812390035X  aeng04a5921 aParker, T. Jeffery (Thomas Jeffery), 1850-189710aTextbook of zoology : invertebrates Vol. II /cParker, T. Jeffery (Thomas Jeffery), 1850-1897 1aNew Delhi :bCBS Publishers & Distributors,c1987.  a952 p.1 aHaswell, William A. 1854-1925