DUBLIN MICROSCOPICAL CLUB. 313 



valent idea was, these shrivellfd membranous, sac-like skins must 

 be the remains of Noctiluca, though the gentleman who made the 

 collection had not recognised any phosphorescence. — Mr Crowe 

 likewise showed spicules of " Venus's Flower-basket," obtained 

 from an example given to him bj the same gentleman. 



Dr. Macalister exhibited the hairs of Oaieojnthecus volans, 

 showing that they are of similar structure to those of Insectivora, 

 and do not in any respect resemble those of the Cheiroptera. 



Dr. E. Perceval Wright exhibited preparations of the curious 

 foot-like appendages met with in the Peripatus Huttoni — a new 

 species of tliis remarkable genus, sent by Captain Hutton, a corre- 

 spondiug member of the club, from New Zealand. It was the first 

 species of this genus discovered in New Zealand. Perhaps the 

 most satisfactory figures of the details of structure met with in 

 the genus were those of Grube, in the " Novara ileise," and yet, 

 in reference to the feet and their curious hooked claws, they still 

 left something to be desired. Dr. E. P. Wright expected some 

 fresh specimens from Captain Hutton, which might, perhaps, 

 throw some light on the variety in the number of the segments 

 constituting the bodies of these annelids. 



Mr. Archer showed several Desmidiea) from the Gal way gather- 

 ings, also Tatem's new Melicerta (a beautiful object) ; and, ere 

 the meeting broke up, further drew likewise the Club's attention 

 to a recent paper by Professor Max lleess (in ' Monatsbericht der 

 Akad. der Wissensch.' Berlin, October, 1871), conveying an 

 account of certain experiments by him in "sowing" the spores 

 of Collema on the substance of Nostoc, thereby, as the author 

 inferred, converting the "Nostoc" into Collema. This paper 

 Mr. Archer had only just seen, and had been much interested 

 thereby; it served to recal to recollection an example of a little 

 Nostoc, bearing indubitable " spores," not long since brought by 

 him to a meeting of the Club, but, owing to press of matter, not 

 exhibited, and which somehow had been since omitted even to be 

 recorded ; he would, however, take a subsequent opportunity to 

 draw attention thereto in a separate Paper, and at the same time 

 venture to refer to the memoir of Eeess more at large. 



21st March, 1872. 



Mr. A. Andrews exhibited living examples of Bosmina longi- 

 rostris, and of Lynceus elongatus, from Clonhugh Lake, near 

 MuUiugar. 



Dr. John Barker showed fertile examples of (Edogonium ecliino- 

 spermum, the antheridia, not, as ordinarily the case, seated on 

 the cell supporting the oogonium, but further down, here and 

 there, along the filament. 



Dr. Moore exhibited a moss from New Zealand showing tlie 

 peculiarity in the cells of the leaves of an internal arrangement, 

 bearing some faint resemblance to the reticulate structure of those 

 in Sphagnum, but not constituting the real parenchymatous tissue, 

 as is the case in that genus. 



