716 SUMMARY OF CURRENT RESEARCHES RELATING TO 



the most familial- and widely distributed of spiders, living close to the 

 earth, usually chasing their prey, often protectively coloured. " The high 

 arched cepbalothorax and the long stout legs plainly bespeak strength 

 and speed. . . . The arrangement of the eyes is such as to make the 

 animal aware of movements within its limit of vision in front, at the 

 sides, and through a considerable arc behind. . . . Other characters 

 serving to distinguish members of this family are the three claws of 

 the tarsi, the notching of the trochanters at the outer end beneath, and 

 the excavation of the posterior piece of the superior lorum of the 

 abdominal pedicel." The eggs are carried in cocoons attached to the 

 spinnerets ; the hatched young are carried for some time on their 

 mother's back. 



New Mite.* — E. Trojan observed that the flies (Musca vomtioria) in 

 his house showed signs of epidemic disease. They were thin and 

 shrivelled looking, their flight and movements generally were languid, 

 and they continually stroked their bodies with their legs. Examination 

 showed that they were infested with ecto-parasites, each fly bearing two, 

 three, or five. When a fly was killed, the parasites immediately left it 

 and moved away. Sixty of the parasites were collected and examined, 

 and proved to be mites of the genus Holostaspis, closely resembling 

 H. badius, described and figured by Berlese, occurring on the same host. 

 The form in question, however, differs from H. badius in regard to the 

 arrangement of teeth on the mandibles, in certain details of the epistom 

 and hypostom, and in bodily size. The finder, therefore, regards it as 

 a new species, and names it H. sita. All the specimens collected were 

 females, and well-developed larvse were found within nearly all. 



f. Crustacea. 



Lamippidae.t — A. de Zuluetta discusses this peculiar family of 

 parasitic Copepods, which infest Alcyonarians. The minute body is 

 fusiform, soft-skinned, without differentiated regions or segments. 

 There are three kinds of cuticular structures — uncinate setae, subulate 

 setae, and hair-like setae. The appendages consist of antennules, uni- 

 ramose antennae, a degenerate oral apparatus, two pairs of thoracic 

 limbs. There is a terminal furca. The females show a pair of ventral 

 genital openings, but the males show none. 



The author describes several new species of Lamippe (from Sympo- 

 dium, AJcyoniwn, Pennatula, Pterocides, Veret ilium, etc.), and establishes 

 a new genus, Linaresia, with a prominent rostrum, with a papillose 

 cuticle, without mouth appendages, with very long furcal lobes. 



Classification of Scalpelliform Barnacles.! — H. A. Pilsbry com- 

 pares his conclusions as to classification with Hoek's. He recognises 

 four genera — Galantica, Smilium, Euscalpellum, and Scalpellum — and 

 gives a key. The structure of the little males is correlated with certain 

 features of the hermaphrodites, especially the development of a sub- 

 carina. • The least specialised males belong to hermaphrodite forms, 



• Arch. Natur., i. (1908) pp. 1-12 (1 pi. and 5 figs.). 



t Arch. Zool. Exper, ix. (1908) pp. 1-30 (26 figs.). 



\ Proc. Acad. Nat. Sci. Philadelphia, 1907, pp. 105-11 (1 fig.). 



