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



and atomos in Lirm. Si/sf. Nat. n. 83. n. 84 ; Gammar. linearis of J. C. Fabricius ; atomos 

 of Pennant ; Squilla lobata, MuJler prodrom. 2359 ; Ott. Fabric. Faun. GriJnl. 248. n. 225 ; 

 Oniseus scolopendroides of Pallas; Martin Spizherg. tab. B. Jig. I. p. 115. Granat.; Easier 

 opusc. subsec; and " Miiller Zool. Dan. p. 21. tab. LVI. Squilla quadrilobata mas, gam- 

 marus quadrilobatus, tab. CXIV. foem. anteced." It is in all probability the Caprella linearis 

 (Linn.) Bate, the figure 9. A, agreeing very fairly with that of Caprella lobata in the 

 Brit. Sess. Crust., vol. ii. p. 57. 



" 83. Der Bauchichte. Cancer (Gammarellus) venfricosus," 0. F. Miiller. 



The section or family concludes with three species which are not Amphipoda. 



" 84. Die Salzgarneele. Cancer (oniseus) saliyms. 



" 85. Die CylinderasseL Cancer (oniseus) ajlindricus. 



" 86. Der Heringfreund. Cancer (oniseus) esca." 



Figures are given on pis. xxxv. and xxxvi., from various sources, for all the species except those 

 numbered 72, 73, 74, 77, 78, 79, 80, 81, and the last three." 



Herbst's work is spoken of with great commendation by Milne-Edwards, but it must be confessed 

 that, however great its merits may be in regard to Crustacea in general, on the Amphipoda 

 this compilation throws but little light. 



179G. Latreille, Pierre Andr4 born 1762, died 1833 (Hagen). 



Precis des Caracteres generiques des insectes, disposes dans iin ordre naturel. 

 Par le Citoyen Latreille. A Paris, et a Brive, an 5 de la E. 



In the preface Latreille defines the word inseete : "Animal sans vertcbres, dont le corps et les 

 piattes sont de plusieurs pihccs." The work opens with a Tabular " Division generale des 

 insectes," showing fourteen classes, the first seven belonging to the Aik's, the remainino- 

 seven to the Aptferes. Classe xii. is formed by the "Entomostraca, Mull.," corresponding 

 to " Synistates, Agonaies, Fab." Classe xLii., containing " Crustaces, Crustacea. Agovates, 

 Fab.," is defined : — " Tete confondue aveo le corps renferme ordinairement sous une 

 caparace. Antennes. (Quatre) 



" Plusieurs rangs de feuillets maxillaires et d'antennules, dont deux inserees et couchees sur les 

 mandibules. Levre inferieure. o. 



"Dix pattes communement." 



Classe xiv. containing " Myriapodes, Myriapoda. Synistates, mitosates, Unogates, Fab.," is 

 defined : — "Tete distinguee du corps, antennifere. 



" Mandibules ayant un avancement conique a leur base ; des dents ecailleuses implantees sur le 

 contour de Textremiti^. 



" Deux rangs de machoires au plus. Une levre inferieure. Quatorze pattes et plus." 



On pages 193-201 the genera of the two last classes are given. Under "Crustaces. {Cancer 

 Linn. Geoff.)," are given Cancer, Pagurus, Scyllarus, Hippa, Galathea, Astacus, Squilla, 

 Gammarus, Carcinus, Entomon. Of these the eighth and ninth are thus described : — 



" CREVETTE. Gammaeus, Fab. OUv., Squilla, Fab. 



"Antennes pedonculees, trts-simples ; anterieures courtes, subulees ; posterieures setac^es. 

 Antennules bifides. Feuillets maxillaires exterieurs ayant plus de divisions que les 

 interieurs. 



" C. H. [Caracteres habituels.] Corps petit, alonge, comprime, glabre, agile, de plusieurs 

 segmens. Tete distinguee du corcelet ; yeux souvent petits, arrondis et sessiles. Antennes 

 rapprooh^es, inst^rees dans I'entre-deux. Pattes de dix h, seize ; anterieures quelquefois en 

 pince on en faux. Queue terminee par plusieurs pointes ou styles. 



"*CARCI]Sr. Carcinus. Gammarus, Fab. Oliv. 



