594 SUMMARY OF CURRENT RESEARCHES RELATING TO 



New Mysid Genus.* — G. Hlig describes Echinomysis chuni g. et. 

 sp. n., captured by the German Deep-Sea Expedition in the Antarctic 

 Ocean and in the Indian Ocean. It is remarkable for its extraordinarily 

 rich covering of spines on the cephalothorax and limbs. 



Atlantic Penseidse and Stenopidae.f — E. L. Bouvier reports on 

 collections made in the eastern Atlantic. Notable species of Penaeids 

 of extreme rarity are Hemipeneeopsis villosus, Grimaldiella richardi, and 

 Aristropsis armata. A very interesting Stenopid is Spongicola evoluta, 

 which preserves in a remarkable degree the traces of its phyletic evolution. 



New Schizopods.J — E. W. L. Holt and W. M. Tattersall report on 

 a collection of Schizopods made by Mr. George Murray during the cruise 

 of the ' Oceana ' in 1898. They describe two new species, Katerythrops 

 oceanct and Gnathophausia drqxinephora. 



New Cave Isopod.§ — E. G. Racovitza describes Typhlocirolana 

 moraguesi g. et. sp. n., an aquatic Isopod from the dragon grotto in 

 Majorca. The grotto has a rich and varied fauna, including various 

 Diptera, a Hemipteron, two spiders, a species of Lithobius, a terrestrial 

 Isopod, two aquatic Amphipods, a Planarian, and the above-mentioned 

 representative of the family Cirolanidee. 



Female Gonads of Cypridina.|| — A. Ramsch describes the ovary, 

 oviduct, external genital parts, and oogenesis of Cypridina mediterranean 



Annulata. 



Oligochaeta of Lake Baikal. 1J — W. Michaelsen contributes the first 

 memoir dealing with the results of Professor A. Korotneff 's expedition 

 to Lake Baikal, and describes the Oligochaeta. Thirty-six species were 

 found, fourteen of them new. The remarkable feature is that they 

 mostly represent primitive archaic types, phyletically ancient. Thus 

 the genus Lamprodrilus is ancestral to all the Lurnbriculidge ; Teleuscolex 

 is perhaps even older ; Propappus is at the root of the Enchytrasidaj. 

 Lake Baikal is doubtless unique, " a zoological-palasontological museum " 

 in which there still live organisms of ancient days mingled with more 

 modern forms. It is not a relict sea, but a persistent lake of great geo- 

 logical antiquity, which has proved an asylum for many types which 

 have long since disappeared elsewhere. The series of memoirs thus 

 begun deserves hearty welcome. 



Annelids of Cette.** — Albert Soulier continues his description of 

 the Annelids of Cette, dealing with the genera Pygospio, Sphairosyllis, 

 Grubea, Spermosyllis, Exotokas, Syllis, and Polycirrus. 



Phenomena of Asexual Reproduction in Salmacina and Filigrana.ff 

 — A. Malaquin finds that asexual multiplication in these types is pre- 



* Zool. Anzeig.. xxix. (1905) pp. 151-3 (2 figs.). 



t Comptes Rendus, cxl. (1905) pp. 981-3. 



X Ann. Nat. Hist., xvi. (1905) pp. 1-10 (2 pis.;. 



§ Bull. Soc. Zool. France, xxx. (1905) pp. 72-80. 



|| Zool. Anzeig., xxix. (1905) pp. 133-6 (1 fig.). 



•f Wissensch. Ergeb. Zool. Exp. Baikal-See. Erste Lieferung, Kiew and Berlin r 

 1905. pp. 1-69 (9 figs.). 



** Mem. Sect. Sci. Acad. Montpellier, iii. (1904) pp. 319-74 (12 figs.). 

 tt Comptes Rendus, cxl. (1905) pp. 1484-7. t 



