STUDIES ON THE TREMATODE FAMILY ECHINOSTOMATIDAE DIETZ,1909 FROM FUJIAN

This is the second report of our studies on the trematode family Bchinostoma-lidae Dietz, 1909. Altogether 8 genera and 18 species were collected from 17 species of birds, 2 species of mammals and 1 species of fish in Pujian Province during 1960-1964. Of the 18 species, 13 are reported for the first time from China and 5 are considered as new to science. The names of the trematodes and their hosts are giren in a list in the Chinese text. Type specimens are deposited in the Parasitology Eesearch Laboratory, Fujian Normal University. Diagnoses of the new species may be given below. (Body measurement given in table 2.)1.Dietziella minjiana sp. nov. (fig. 1)Eight specimens were collected from the intestine of Pseudobagrus vachelli Richardson in Shaowu, Xianyou and Shunchang, Fujian Province.This species differs from the related species D. deparcum (Dietz, 1909) by the number of cephalic spines (25 as against 24) and by the larger size of the body, sucker, testes and eggs.2.Echinoparyphium gallinarum sp. nov. (fig. 2)Numerous specimens were collected from the intestine of Gallus gallus domesticus in Puzhou.This species differs from the related species E. sinorchis Oschmarin, 1956 chiefly in the larger size of body,cephalic spines, sucker, and eggs, and also by its testes divided into 6-8 deep lobes and cuticular spines extending to the margin of aceta-bulum.3.Echinochasmus (Ech.) truncation sp. nov. (fig. 3)A single specimen was secured from the feeding experiment of a dog with unidentified fishes containing the infected metacercaria from Nanan, Fujian Province.The present worm resembles E. (Eoh.) dietzevi Issaitschikoff, 1927, but may be distinguished from the latter by (1) larger size of body, sucker and eggs; (2) smaller cephalic spines; (3) cuticular spines extending to the level of the margin of the ovary; (4) vitellaria distributed on both sides from the level of fore margin of the anterior testis extending to the posterior end of the body.4.Mesorchis acridotherei sp. nov. (fig. 4)Three specimens were collected from the intestine of Acridotheres c. cristatellus Linnaeus from Puzhou.This species differs from M. reynoldi Bhalerao, 1926 by its body being shorter and broader, cephalic spines smaller, oral sucker and eggs larger, and also by its testes being triangular in shape arid cuticular spines extending to the middle of the acetabulum.5.Mesorchis tringae sp. nov. (fig. 5)Six specimens were collected from the intestine of Tringa ochropus Linnaeus from Puzhou.This species closely resembles M. fusca Lal, 1939, but differs from the latter by having a more elongate body and larger acetabulum (368-384x336-352u as aginst 250u in diameter), longer oesophagus (0.80-0.88mm as against 0.275mm), and larger eggs (78-84x52-62u as against 50x25u).