On Echinoderms from Port PhiUij). 401 



mens associated with it — one a female from Thursday Island, 

 the other a small male from Torres Straits — the apices are 

 obliquely truncate, with the outer angles produced, especially 

 in the male. The female agrees very well with the figure 

 and description of Paraglioma acuminipennis. The genus 

 Paragnoma was therefore, as Pascoe and Lacordaire correctly 

 surmised, founded npon the female of a species of Pelargo- 

 derus^ and cannot stand. 



{Monohammus) marciporj Newm., belongs to the genus 

 Anammus • it is intermediate in size and structure between 

 A. conspersus and A. Daleni. 



Monohammus melanost ictus, White, is synonymous with 

 M. heryllinuSj Hope. This species and Monohammus Boio- 

 ringii, White, belong rather to the genus Melanauster. 



To the genus Domitia, Thoms., must be added D. [Mono- 

 hammus) viridipennis, Chevr. This species is possibly iden- 

 tical with the type species D. lupanaria, Thorns. ; it differs 

 from the description of the latter only in being smaller and 

 in a few other minor particulars. To the same genus doubt- 

 less belongs the Lamia cenea of Parry, which in the Munich 

 Catalogue is placed in the genus Sternotomis. It is uncertain 

 whether this species also is not synonymous with one or both 

 of the species just mentioned. 



Agnoderus, Thoms. — This genus is known only from the 

 female sex, which was described by Thomson and Lacordaire, 

 the latter wrongly regarding it as the male. In the male the 

 antennae are twice as long as the body, and the third, fourth, 

 and fifth joints are almost normal, being slightly and gradu- 

 ally thickened towards their apices, but not so markedly so as 

 in the female. In other respects the two sexes scarcely 

 differ. 



There are in the Museum collection five sp cimens of the 

 type species A. gnomoides^ Thorns., two males, and three 

 females, all from North India. 



In this genus also miglit be placed Monohammus desperatus^ 

 Thoms. {^Fredericus^ White). 



LIII. — Notes on Echinoderms collected at Port Phillip hy Mr. 

 J. Bracehridge Wilson. By Prof. F. Jeffrey Bell, M.A. 



During the last few years Mr. J. Bracebridge Wilson has 

 from time to time been so good as to present to the Trustees 

 of the British Museum interesting examples of the Echino- 



