PISCES. 
209 
Plagiostomata. 
A Carcharias (^Prionodoti) hleeJceri, sp. n., Dum^ril, Elasniobr. p. 367, from 
Pondicherry C«rc7iCT?Vfl5s {Prion.) remotus, sp. n., Bum^ril, 1. c. p. 374, from 
the West Indies. 
[^CarcJiarim'] Isogompliodon niacuUpihnisy sp. n., Poey, Ilepert. Fisico-nat. 
Cub. 1865, p. 191, from Cuba. 
3£icristodMS punclatm, g. Sz sp. n,, related to Phinodo7i, from California, 
pill, Proc. Ac. Nat. Sc. Philad. 1865, p. 177. 
Sn/mnus 7nic7'ocephalus, observed in Spitzbergen by JMalmgren, GCfvers. 
Svensk. Vet.-Akad. Forh. p. 536. 
Lmnai'gm rostratus (M. & H.) is described and figured by Canestrini, 
Mem. Accad. Sc. Torin. xxi. p. 364, tav. 2. figs. 2-4. 
LeiuSj g. n., Kner, Denkschr. Ak. Wiss. Wien, xxiv. Rostrum obtusum, 
modice productum, dentes supramaxillares parvi acuti pluriseriales et mo- 
biles, inframaxillares numero 26 maximi uniseriales basi lata, apice medio 
prfelongo, in laminam immobilem coaliti, antrorsum spectantes ; foramina 
temporalia semilimaria ; pinnfe parvse inermes, I*"* dorsalis anali opposita et 
gdee vicina, analis nulla ; cutis Ireviuscula ; fissurse branchiales 6 parvse. 
^ L. fe7'ox, sp. n., Kner, 1. c. taf. 4. fig. 2, from Australia. 
P7'istis inegolodon, sp. n., Dum^ril, Elasmobr. p. 476, pl. 9. fig. 4, hab. — ? 
The jaws of other species of this genus are figured on the same plate. 
\To7'pedo'] Na7'cacion pollcni^ sp. n., Bleeker, Nederl. T 5 ’^dschr. Dierk. iii. 
1865, p. 171, from the island of Reunion. 
Torpedo. M. Ch. Matteucci reports on physiological experiments. Compt. 
Rend. 1865, Ixi. pp. 627-629. 
Raja circula7'is (Couch). Some notes on this species, which has been 
found also on the coast of Belgium, by Van Beneden. Bull. Acad. Sc. Belg. 
1865, XX. p. 48. 
A Lcem-aja hra7na7ita (Sassi) is described and figured by Canestrini. Mem* 
Accad. Sc. Torin. xxi. p. 361, tab. 1. figs. 2-5. 
Ptei'oplaiea vale7tcie7i7ii, sp. n., Dum^ril, Elasmobr. p. 612, from Brazil. 
Tmniura 7nagdalen(X, sp. n., Dum^ril, 1. c. p. 625, from the Rio Magda- 
lena. 
Mr. Gill (Ann. Lyc. Nat. Hist. New Ygrk, viii. 1865, 
pp. 135-138) proposes to divide i\\e\Myliobatides thus: — 
I. Myliohathue (Agass.). 
A. Snout entire or convex in front: 1. Mrjliohatis (including lIolo7'hinus^ 
Gill). 
B. Snout emarginate in front. ^ 
a. Teeth gradually diminishing in width towards the sides : 2. R/w- 
noptei'a (including Zygohatis, Agass.). 
h. Teeth like those of 3Iyliohc^is] the middle very wide^the lateral 
little or not wider than long : 3."^ Myloi lmia (g. n., type Rh, lalandii^ 
M. & n.). 
c. Teeth of the middle in thew^^^erjaW narroiver than the mte7'7ial 
1865. [voL. II.] p 
