540 SUMMARY OF CURRENT RESEARCHES RELATING TO 



spermatophores of the forms with only slightly differentiated cerci, in 

 the Gryllidaa and in Diestrammena, is unpaired. But all the Locnstidae 

 have, as regards their spermatophores, followed a path of evolution 

 which has led them very far away from the Gryllidae, and transition 

 forms have still to be discovered. 



B. Myriopoda. 



Genus Watobius.* — Ralph V. Chamberlin gives an account of this 

 genus of Centipedes, at present known to occur only in the south- 

 eastern United States. Attention is drawn to some of its important 

 characters. The eyes are composed of several ocelli ; the outer branch of 

 the first maxilla is Particulate ; the sternite of the prehensor segment 

 is absent, no transverse ventral sclerite or collar being developed ; anal 

 pores are not present in the adult; the gonopods of the male are small, 

 and consist of but a single reduced joint. Definitions are given of the 

 family Watobiidas and the genus Watobius • the type W. anderisus 

 Chamberlin is described. 



New Cavernicolous Myriopod.-f— H. W. Brolernann describes Spelseo- 

 gervaisia jonescui g. et sp. n., a new Millipede found by C. N. Jonescu in 

 a Carpathian grotto. It is rather over 4 mm. in length and without 

 pigmentation. Its position is in close vicinity to Gervaisia, but it is 

 markedly adapted to a life in caves. As in Gervaisia, the skin-glands 

 secrete calcareous matter, but not nearly to the same extent. The organ 

 of Tomosvary near the antennary pit is not a more or less elongated 

 horseshoe, as in Gervaisia, but is short, broad, and almost circular. The 

 four ocelli on each side are quite without pigment. 



7- Prototracheata. 



New Peripatus from Colombia J— Charles T. Brues describes Peri- 

 patus (Epiperipatus) vespucii sp. n., which falls near P. edwardsii, and 

 also shows a striking resemblance to P. brasiUensis. The collection 

 from Colombia also included P. edwardsii and P. imthurmi. In some 

 field notes by A. S. Pearse it is stated that specimens of Peripatus may 

 crawl backward as well as forward, and that the white or colourless 

 secretion which they eject anteriorly hardens rapidly and acts like glue. 



5. Arachnida. 



Littoral Mites. § — L. A. L. King publishes some interesting notes on 

 the habits and characteristics of certain littoral mites at Millport. The 

 first is Gamasus (Eugamasus) immanis Berl., a giant among Gamasids, 

 the female reaching a length of over 2*5 mm., and a breadth of over 

 1 • 6 mm. This mite fed on living Oligochretes, using its chelicene, 

 which are chelate and retractile into its body. It plunged these into the 



* Bull. Mus. Comp. Zool. Harvard, lvii. (1914) pp. 107-12 (2 pis.), 



t Arch. Zool. Exptk., liv. (1914) pp. 99-104 (1 pi.). 



\ Bull. Mus. Comp. Zool. Harvard, lviii. (1914) pp. 375-82 (2 pis.). 



§ Proc. Roy. Phys. Soc, xix. (1914) pp. 129-41 (9 figs.). 



