46 THE VOYAGE OF H.M.S. CHALLENGER. 



"Cancer medusanun, antennis brevissiinis, capite latiore. Miill. Zool. Dan. 188. 2355. 



" Corpus paruum, incuruum, antice obtusissimum. Aatennfe quatuor breuissimas, filiformes, 



simplices. Abdomen postice attenuatiim. Cauda filiolis quatuor bitidis. Pedes septem 



parui, breues. Natatorii utrinque tres." 

 This description is accepted as applying to Hypevia medusanim, 0. F. Miiller. 

 At page 383 lie describes the new species : — 



" Gammarus corniger manibus adactylis, rostro incuruo subulato, thoracis lateribus cornu duplici. 

 " Medius in hoc genere. Antennae quatuor jequales filiformes, simplices, albae. Eostrum breue, 



subulatum, acutum inter antennas incuruum. Oculi magni, sessiles, cinnabarinL Corpus 



segmentis vndecim breuibus albidis niargine sanguineis, posticis quinque dorso carinatis, 



spinosis. Sub thoracis lateribus vtrinque cornua duo basi connata, valida, subulata, acuta : 



anteriori arcuato. Cauda stylis pluribus bitidis." 

 This lias since been recognised by Boeck as identical with Epirneria tricristata, Costa, and is 



accordingly named Epimeria cornigera, Fabr. 



1780. Fabricius, Otto, bom 1744, died 1822 (Hagen). 



Fauua Groenlandiea, systematice sistens Animalia Groenlandise occidentalis hac- 

 tenus indagata, quoad nomen specificum, triviale, vernaculumque ; synonyma 

 auctorum plurium, descriptionem, locum, victum, generationem, mores, usum, 

 capturamque singuli, provt detegcndi occasio fuit, maximaque parte secundum 

 proprias observationes Otliouis Fabricii. Hafuise et Lipsiae, mdcclxxx. 



On pp. 212, 213, No. 179, he describes a Podura maritima from the sea shore, with a reference 

 to Strom, Act. Hafn. ix. p. 582, Tab. v. (?), which does not appear to be a Crustacean, and 

 must therefore be distinguished from Poda's Podura maritima. 



SquiUa lohatu, p. 248, for which he refers both to Squilla lohata, MiiUer, and to Cancer filiformis, 

 Linn., Pall., may be either Caprella septentrionalis, as supposed by Kr0yer in 1838, 

 and afterwards by Boeck, probably on Kr0yer's authority, or Caprella linearis, as Mayer 

 seems to prefer, while half inclined to make septentrionalis itself a synonym of linearis. 



The Oniscus ceti, No. 230, as Liitken points out, is not entirely free from the early confusion 

 about Cyamus. The definition is taken with slight change from Linnaeus, and the descrip- 

 tion by PaUas is referred to as making further details needless, although both Linnaeus and 

 PaUas had to do with Cyamus inysticeti, while Fabricius was evidently concerned with what 

 Liitken has named Cyamns hoopis, as shown by the statement " mea exemplaria accepi 

 in balaena boope." Liitken remarks also that Fabricius is wrong in the detail supplied 

 by the words " femora postica biaculeata." 



Oniscus pulcx, No. 231, is no doubt, as Kr0yer and Boeck say, Gammarus locusta. Fabricius 

 himself in the synonymy gives " Cancer Locusta, Syst. nat. 1, 1055, Faun. Suec. 2041. 

 indice PaUade 1. c. hue pertinet ; et certum est, descriptionem cancri coerulei It. Gothl. 

 260. ibi citatam Onisco pulici omnino convenire, licet ab autore ipso pro distincto 

 habitus." 



Oniscus medusartim, No. 232, is by Bovallius (1886), called " Hyperia Kroeyeri." 



Oniscus cicada, No. 233, with " color totus pulchre rubicundus, oculis sanguineis," is considered by 

 Kr0yer, in 1838, to be probably the same as his own Ampliiflioe. inermis. MLLne-Edwards, 

 in 1840, Hist, des Crust., iii. p. 25, thinks that it is very likely the same as the Amphi- 

 toe serraoi Kroyer, which he would place in the genus AcaiitJio7iotus, Owen and Boss. But 

 on p. 34 of the same volume he questions whether it may not be the same as Amphitoe 

 inermis, Kr0yer. Krdyer himself, Tidssk., iv. 161, note, in 1842, repudiates MiLne-Edwards, 

 first suggestion, and says, " Oniscus cicada is probably a species of the genus Anonyx." In 



