REPORT ON THE AMPHIPODA. 25 



sex. Ociili fusci, minime petiolati. Pedes utrinque sex, hinc simul duodecim, quorum 1, 

 2, 3, 6 (a Cauda antrorsum numerando) femora ovata, compressa gerunt. Tibiae vero primi 

 paris pariter ovata3, comijressse, & margine denticulate. Par ultimum capiti proximum, seu 

 brachia, manu falcata unguiformi, unico dente in medio armata. Cauda adscendens, conica, 

 linea brevior, subjectas habet setas duas ad basim usque bifidas. Haec Pcxlura Maritima 

 E. P. PoDA, Mus. Grjec, p. 121. 



♦'1137. Cancer P«Z«. 



" Linn. Syst. Nat., p. 633. 



" Faun. Svec. 2. 2041. 

 " Feisch. Ins. 7. Tab. 18. fig. 1. 



" Diagn. Facies prioris, sed dupio minor, & albidus. Antennae palpis longiores, sed non crassiores. 

 Pedes pilo.si. Maculae crocete laterales. 



" Habitat sub Ilypnis, & saxis, ad scaturigines fontium. 



" Hie certe idem, qui a Feischio pictus, sed semper habitans in aquis dulcibus, non vero circa 

 Mare, bine dubito cum priore a LiNNiEO confundi, cum Cancer Loaista ab eo aliter describ- 

 atur qnam a nobis. Hie, quando exsiccatus, fulvus redditur, natat in latere, rarius in dorso ; 

 OS fulvum gerit, nee corpus postice acuminatum. Interim certum adeo nobis cum priore a 

 Gancris aliis diversum esse, ut novum Genus non immerito constitueret." 



The " Cancer Locusta ? " Pallas considers to be his Onisevs Gammarellus, since kno\vn as 

 Orchedia gammarellus. The " Cancer Pulex " is in all probability the Gammarus pulex, 

 auctorum. 



" 1140. Oniscus Bicavdatus" with " cauda duplex: utraque biseta," which "habitat copiosus 

 Tergesti ad litus maris, inter saxa cursitans," is said by Franz Leydig to be the same as 

 Ligia italica, Fabr. 



Yeats, Institutions of Entomology, 1773, says that Scopoli and Geoffroy call the shorter antennos 

 the palpi in the Cancri macrouri. It may therefore be noticed that Scopoli, in describing 

 "Cancer Zo«(s/a.?" says, "Palpi antennis triplo longiores : articulis (20)," meaning, apparently, 

 that the lower antennae are thiee times as long as the upper. 



1764. Brunnich, Martin Thrane, born 1737, died 1827 (Hagen). 



M. Th. Briiunicliii Entomologia, sistens Insectornm Tabulas Systematicas, 

 cum Introductione et Iconibus. HAFNIJE, cioioccLXiv. 3n6eftlacrc, int>c()olticnt)e 

 3u6cfternc3 ®»)gtcmatt3fe Salter, §amt Sntikbning og Sigurcr. it'i0bn^a»n, 1764. 



After describing the dififerent parts of an "insect," and giving a list of the different writers on 



Entomology, Briinnich luifolds his own classification under the title " Tabulae Insoctorara 



perfectorum." There are two principal groups : — 

 "A. Capite a thorace distinoto," containing,- — "I. Hexapoda;" "II. Polypoda." Of these the 



Po%)0(Zrt include three subdivisions: — "Pedibus segmentis corporis utrinque paucioribus ; 



XIV. et plures ; Corpore ovali ; 



" (a) Antennis duabus, . . . .1 



„),(., . ' ^Oniscus." 



(o) Antennis quatuor, . . . . ) 



In the second subdivision Si'olopendra is placed, and Julus in the third. 



"B. Capite cum thorace unito," containing two sections, " I. Pedibus natatoriis omnibus," &c., 

 for MoNOCULHS; "II. Pedibus ambulatoriis," for Acarus, Ptcnogoxum, Phalangium. 

 Aeanea, Scorpio, Cancer. Of these the first four are Pedibus Octo, the other two Pedibus 

 " Decern, anticis cheliferis ; Cauda elongata, articulata." Cancer is defined " Oculis II, 

 pedunculatis, distantibus ; Cauda inermi ; " with various (presumably specific) divisions, 



(ZOOL. CHALL. EXP. — PART LXVII. — 18S7.) XxX 4 



