ZOOLOGY AND BOTANY, MICROSCOPY, ETC 643 



occurred on each side, was nearly circular in outline, was attached like 

 a wing, but showed no trace of veins and only a few minute tracheoles 

 in its cavity. This case differs from almost all of those previously 

 recorded, in" being bilaterally symmetrical, and in tho supernumerary 

 being closely similar to the normal wing in its general outline. 



Development of Coccidse.* — L. Reh concludes that male Coccida> 

 have an indirect development, with at least two larval stages and one 

 or two pupal stages, while the females iindergo no metamorphosis at all. 



j3. Myriopoda. 



Coxal Sacs of Diplopoda.j — K. W. Verhoeff notes that coxal sacs 

 occur in Colobognatha (in all '?) from the third appendage almost to tho 

 last. In this respect, as in the simple limb-like gonopods and simple 

 mouth-parts, the Colobognatha, such as Heterozonium, seem to represent 

 the most primitive group among the Chilognatha. 



Supposed Phosphorescence of Millipedes. J— Prof. F. Ludwig notes 

 that a species of Scolioplancs (family Geophilidoe) which he studied, 

 secreted a luminous mucus capable of making contiguous objects 

 luminous. The animals were not always luminous, and they came from 

 wood traversed with " Eallima sell" mycele. He cites other iustauces 

 of luminous millipedes, but is inclined to conclude that in the case of 

 Scolloplanes and its relatives, the luminosity is not due to the animal, 

 but to the luminous wood, i.e. to its content of luminous Mycomycetes 

 and Photobacteria. Experiments for testing this are suggested. 



Nest of Iulus.§ — Dr. G. llossi has made some interesting observa- 

 tions on lulus terrestris, which secretes a silky substance drawn out in 

 threads. This material is used in the construction of a nest in which 

 the eggs are deposited. They are placed in damp earth in the vicinity 

 of material useful for the nutrition of the larva?. 



y. Protracheata. 



New Species of Peripatus. || — Pichard Evans describes two new 

 species of Peripalus, obtained by himself in the Malay peninsula. He 

 includes them, together with Horst's P. sumatranus, in a new genus 

 Eoperipatus, as E. weldoni and E. Jiorsii. When captured, the specimens 

 ejected from the slime papillae a sticky whitish secretion to a distance 

 of fully eighteen inches. As in Horst's species, the feet have only two 

 papillae; the ventral organs in the adults are less degenerate than in 

 most forms described ; the outer blade of the jaws has two denticles on 

 the inner side of the main tooth ; the ova are large and full of yolk. 



In a further paper,^[ the author describes as Eoperipatus butlcri 

 sp. n., a female specimen in the British Museum, obtained from the 

 Larut Hills, Straits Settlements. It differs only in minor points from 

 the other species of this genus. 



* Allg. Zeitschr. Entomol.. vi. (1901) pp. 51, 61, 85. See Zool. Centralbl , viii. 

 (1901) pp. 652-3. t Zool. Anzeig., xxiv. (1901) pp. 601-4. 



% Centralbl. Bakt, vii. (1901) pp. 270-4. 

 § Zool. Anzeig., xxiv. (1901) pp. 525-7. 

 i| Quart. Joura. Micr. Sci., xliv. (1901) pp. 474-53S (6 pis.). 

 i Tom. cit.. pp. 539-64 (1 pi.). 



