444 MISS M. TURNER OX THE XEMATODE 



The mouth capsules of both C. goldl and C. pseudo-cathiatttm 

 are like those of G. catinaium and 0. alveatum in being ellipsoidal 

 in tiunsvei'se section, with the longer axis dorso- ventral. The 

 moiith capsule of C. pseudo-catinatum is desciibed as having an 

 oblique floor. This character is not mentioned in C. goldi. The 

 optical section of the mouth capsule differs in the two species. 

 In G. goldi the Avails in ventral view converge anteriorly, while 

 in G. pseudo-catinatum they converge posteriorly. The height of 

 the mouth copsule of C. goldi is given ns "about 20//,." In the 

 males of G. jiseudo-catinatum this height varies from 22 5/x-25/x 

 and in the females from 24ju,-29f(., so that from these measure- 

 ments the mouth capsule of G. p)seudo-catinatam appears to be 

 slightly larger than that of G. goldi. The measurement of the 

 breadth of the mouth capsule has been undertaken iii such 

 different ways in the two species that it is not possible to com- 

 pare the measurements given. From the figures it appears that 

 the proportion of the breadth of tlie mouth capsule to its height 

 is greater in G. pseudo-catinatum than in G. goldi. 



The doi'sal oesophngeal gutter does not project into the mouth 

 capsule in either species. 



The (esophageal funnel is well developed in both G. goldi 

 and G. i^seudo-catinatum. In the latter, however, cuticular 

 thickenings lining this funnel are not figured. 



The oesophagus in eight males of G. 'jiseudo-catinatum varies in 

 length from 314/x-349/^. and in breadth from 70ft-82f(.. In eight 

 females the oesophagus varies in length from 322ft-363/x and in 

 breadth from 72/i.-83/a. Taking the outside of these measurements 

 the oesophagus of G. pseudo-catinatum xsiVieaivovLi 314/x-363/a in 

 length and from 7Cft-83/x, in breadth, and these nieasurements 

 are not very different from the 300/A-350/a in length and the 

 70/x--75)U, in breadth that Boulenger gives for the oesophagus 

 of G. goldi. In the oesophagus of both species the posterior bulb 

 is not markedly swollen. 



The cervical papilke of G. goldi are situated about 270jU-300/x 

 from the anterior end of the body. In G. 2)seudo-catinatum the 

 cervical papillse are at about the same level as the excretory 

 vesicle, that is from 67/a-152/a from the posterior end of the 

 o?sophagus. It is not possible to compare these tAvo sets of 

 measurements. In the figVTre of G. goldi that part of the 

 <jesophagus behind the excretory A^esicle is about one-fourth of 

 the length of the whole esophagus, Avhile in the figure of G. pseudo- 

 catinatum the proportion of the same two parts is one-third. It 

 may be that this figure of G. pseudo-catinatum is that of a 

 specimen where the excretory vesicle is about 152/x, from the 

 posterior end of the oesophagus. In the figures the cervical 

 papillfe of C goldi are slightly more posterior in I'elation to the 

 excretory vesicle tliaii those of G. pseudo-catincttimi. 



Female. In both G. goldi and G. 'pseudo-catinatum the posterior 

 region of the female is bent dorsally to make almost a i-ight angle 

 Avith the axis of the rest of the body. In both, the tail behind 



