440 REPORT ON ZOOLOGY, MDCCCXLIV. 



makes an interesting communication in Froriep's Notizen 

 xxix, p. 57. The male extended the tubes very far 

 and moved them actively, so that they were frequently in 

 contact for some time with the also extended tubes of the 

 female. The male then ejected, to the distance of about 

 an inch, round fiocculi of a white substance, which con- 

 sisted of spermatozoa, and even before the emission was 

 concluded, which lasted above a quarter of an hour, the 

 female absorbed a great part of the semen ejected by the 

 male. The spermatozoa some hours afterwards were still 

 very lively in the brauchise. 



Aitomia asperu, Philippi (Euurn. p. 65), differing from A. epldpp'mm in 

 having spinous longitudinal folds, is probably only a variety of that species. 

 A. eleyans, ib., circular, white, when old with elevated radiating lines. 



A plate with Pecten in Philippi' s Abbilduugen, iv, contains : P. Antonii, 

 Phil., fricitfiiiatus, Anton, crebficostatus, Mus. Berol., from China, tunica, Ph., 

 from the Sandwich Islands, Fabricii, Ph., from Greenland, tigris, Lam., 

 porphyreus, Chenm. A second Plate (ib. viii) : P. excacatus, Anton, bijidus, 

 Menke, solans, Born, mad/reporarum, Petit, and vitreus, Chemnitz. In 

 Hinds (Sulphur) : P. serlceits, from Panama, floridus, from California, 

 rtiliidiis, from North-west America, digitatus, from Guayaquil, fasciculatus, 

 from Veragua, and corruscans, from the Marquesas Islands. 



Pinna truncata, Philippi (Euum, p. 54), truncated. 



Several new Mytilaceae are described by Sylvanus Hauley (Proc. 13, Feb. 

 1844 ; Annals, xiv. p. 367), viz. : Modiola Metcalfei, striatula, Philippinarum, 

 biradiata, striyata, arcuatitht, sordida. Lithodomus canaliferus, from the 

 Philippines, and plunmlu, from Panama. Mytilus granulatus, fromValparaiso. 



Modiola vestita, Philippi (Euum. p. 51), from Malta. M. Favannii, Potiez 

 et Michaud (Gal. p. 130) : testa oblouga, arcuata ad nates tumidiore, uitida, 

 fulva et anterius rufa, longitudiualiter miuutissime striata, nate producta, 

 incm'va, intus margaritacea. Whence ? 



Anodonla coarctata, Potiez et Michaud (Gal. p. 142) : testa ovato-oblonga, 

 teuui, fragili, trausversim sulcata ; postico latere rotundato, antico, prodncto, 

 compresso, coarctato ; natibus retusis. Tranche Comte. A. obtitsu (ib. p. 

 144) : testa oblonga, ntrinque rotundata, crassa, picea, uitida; striis lougitu- 

 dinalibus in mcdio subuullis ; natibus compressis decorticatis ; inti;s rubeute. 

 Senegal. 



U/do Osbecldi, Philippi (Meuke, Zeitsch. p. 164) : black, linguiform, nates 

 for a quarter of the shell, wrinkled. China, in the Yaug-tse-Kiang. U. 

 Arudir, Philij)}ij (Euum. p. 49), differs from U. Gargott<e?m the olive colour, 



