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



been anticipated, when it is reraembered that they are both original, and taken by different 

 draughtsmen ; and they unquestionably represent the same species." 

 Mayer decides, in regard to the species here given by Johnston, that his CapreUa phasma and 

 Caprella acantldfera are alike ProteUa phasma, Montagu, his CapreUa pennantii is 

 CapreUa aeutifrons, Latreille, his Caprella linearis is rightly named, while his two varieties 

 of Protu pedafus both belong to Proto ventricosa, 0. F. M., the hands in variety 2. having 

 become wrinkled after death. Johnston's figure of this variety, it may be observed, shows 

 the marsupial plates of a female specimen. 



1835- Koch, Carl Ludwig, died 1857 (Hagen). 

 184L \ o / 



1847. Deutsclilands Crustaceen, Myiiapoden u. Aracliniden. Ein Beitrag zur 



deutsclaen Fauna. Herausgeg. von Herricli-Scliaffer. Eegensburg 1835-1841. 



Heft 36. 



Zusammenstellung der in Koch's " Deutschlands Crustaceen, Myriapoden und 



Arachniden," daneben so in " Deutschlands Insecten von Dr Panzer und Herrich- 



SchafFer," vorkommenden Crustaceen, 1847. 



Of these works I have only seen portions, and therefore quote the titles and dates as given in 

 Boeck's list. Apparently with a special view to the confusion of Bibliographers, Koch's 

 work was issued in loose leaves. For each species there is a separate plate measuring about 

 five inches in breadth by four in depth, and a separate leaf of description, six and a quarter 

 inches broad by four in depth. A series of these in a loose paper cover forms a Heft. On 

 the outside of this cover is the table of contents and the date. The date of the 16 2d Heft 

 is "Den 1. Oktober 1838." The number of the Heft is repeated on each leaf, and the 

 synonymy invariably gives a reference to "Koch Dtschl. Crust. Myr. u. Arachn.", with a 

 different numbering; thus in Heft 138, the references are to h. 5 ; in 162, to h. 22 ; in 180 

 to h. 34; in 186 to h. 36. Mr. G. K. Fortescue of the British Museum tells me, on the 

 authority of Hinrichs, that Heft 36 was published in 1841. Hagen, Bibl. Eut. ii. 27, 

 states that Georg Wolfgang Franz Panzer (born 1755, died 1829), began his "Faunas 

 Insectorum Germania; initia" in 1793; that Heft 109, the last by Panzer, appeared before 

 1813 ; that after a long interval Heft 110 was published by Maler Geyer at Augsburg, and 

 that the continuation was by GttH. Aug. Wilh. Herrich-Schaeifer (born 1799), the title of 

 his work being " Die Fortsetzung von Panzer Faunas insectorum Germaniae initia Eegens- 

 burg, (Manz), 1829-1844. 8. Heft. 111-190. a 24 tab. col." 



Mr. Edward Saunders, the weU-known entomologist, informs me that Engelmann, Bibl. Hist. 

 Nat. 1846, quotes the titles thus : — 



" Koch, C. L. Deutschlands Crustaceen, Myriapoden, u. Arachniden. Ein Beitrag zur deutschen 

 Fauna, Herausgeg, von (G. A. W.) Herrich Schaffer. 1-40 Heft (Jedes mit 24 lith. u. 

 iUum. Abbildgn. u. a 24 Bll. Text) qu. 16. Eegensburg, 1835-1841 (Manz)." 



"Panzer, G. W. F. dan. Fortsetz. von G. A. W. Herrich Schafi'er. 111-190. Hft. Jedes mit 

 24 ilium. Kpfrn (u. zusamm. 1592 Bl. Text) 16. Eegensburg, 1829-1844 (Manz)." 



From the latter work Mr. Saunders sends me the following synonymy : — 



" Gammarus fossarum Koch 



Panz. Faun. Germ. (H. Schff.) 138. 1. 



Koch. Deutsch. Crust. Myr. u. Arach. 5. 1. 



" Gammarus puteanus Koch 



Panz. Faun. Germ. (H. Schff.) 138. 2. 



Koch. Deutsch. Crust. Myr. u. Arach. 5. 2. 



