96 



Spidsen. Følerne smale, kort haarede, 2det Led betydelig 

 længere, men smalere end odie; dette noget længere end 

 de 2 ydre Led tilsammen; sidste Led meget lidet, ovalt. 

 De falske Fødder hos Hannen omtrent 1 j i længere end 

 Legemet, Endedelen saa lang som 5te Led, Randtornerne 

 forholdsvis smaa. smalt laneetformige og grovt saugtakkede 

 i Kanterne. Gangfødderne stærkt forlængede, næsten 5 

 Gange længere end Legemet, men temmelig robuste og 

 kun lidet afsmalnende mod Enden. 2det Lægled mere end 

 3 Gange længere end det terminale Afsnit, Tarsal- og 

 Fodled omtrent af ens Længde, begge ualmindelig kraftige, 

 det sidste med 6 — 8 stærke Torner i Inderkanten; Ende- 

 kloen omtrent halvt saa lang som Fodleddet, temmelig 

 stærk; Bikløerne vel udviklede, næsten halvt saa lange 

 som Kloen. Legemets Længde 12'""'; Spandvidde 117""". 



Bemærkninger. Den mest ioinefaldende Charaeter 

 for nærværende Art er de eiendommelige Fremspring paa 

 Kroppens Rygside, hvortil intet Spor rindes hos nogen 

 anden bekjendt Art af Slægten. Ogsaa i flere andre Hen- 

 seender skiller den sig kjendeligt fra de i det foregaaende 

 beskrevne Arter, hvorimod den i sine anatomiske Detailler 

 idethele slutter sig meget nær til folgende Art. 



Beskrivelse. Legemets Længde naar op til 12""" 

 med en Spandvidde af 11 7'""", og den horer saaledes til 

 de største Arter af Slægten. 



Formen maa (se Pl. X. Fig. 2) vistnok idethele 

 kaldes smækker. men dog paa langt nær ikke i den Grad 

 som hos enkelte af de i det foregaaende omtalte Arter, 

 og navnlig har Gangfodderne, omend af betydelig Længde, 

 et umiskjendelig robust Præg. Selve Kroppen viser, seet 

 ovenfra (Fig. 2 a), den sædvanlige cylindriske Form. og 

 har Sidefortsatserne temmelig store og tykke samt skilte 

 ved vel markerede Mellemrum. Sees Kroppen fra Siden 

 (Fig. 2 b), fremtræder imidlertid en for nærværende Art 

 meget udmærkende Charaeter, idet ethvert af de 3 forreste 

 Segmenter bagtil sees at hæve sig til et temmelig hoit, 

 skarpt tilspidset og noget bagudrettet Fremspring. Ryggen 

 faar herved et eiendommeligt, ligesom saugtakket Udseende ; 

 deraf Artsbetegnelsen. Hovedsegmentet er omtrent saa 

 langt som de 3 folgende Segmenter tilsammen og har en 

 vel markeret, skjøndt ikke meget forlænget Hals; Pande- 

 delen er kun meget lidet udvidet og neppe synderlig bredere 

 end de midterste Kropssegmenter. 



I fieknuden (Fig- 2 c) er noget ophoiet. af stump 

 konisk Funn og lidt bagudrettet. med Lindserne af mid- 

 delmaadig Størrelse og beliggende omtrent ved Midten af 

 Øieknudens Høide. 



Snabelen (se Fig. b) er forholdsvis stor og tyk, om- 

 trent af Hovcdsegmentets Længde, og af den sædvanlige 

 cylindriske Fonn. dog lidt afsmalnende i sit ydre Parti. 



ineurvate at the points. Palpi narrow, short-ciliate, 2nd 

 joint considerably longer, lint narrower than the 3rd; the 

 latter somewhat longer than the 2 outer joints tåken together; 

 last joint very small, oval. False legs in the male about 

 one-fourth longer than the body, terminal part as long 

 as the oth joint, marginal spines comparativelv small, 

 narrovv-lanceolate, and coarsely serrated on the edges. 

 Ambulatory legs much elongated, almost 5 times longer 

 than the body hut rather robust, and tapering but slightly 

 towards the end, 2nd tibial joint more than 3 times 

 longer than the terminal section, tarsal and propodal 

 joints about same length. both uncommonly powerful, 

 the latter with — 8 strong spines on the inner edge; 

 terminal claw about half as long as the propodal joint, 

 rather powerful; auxiliary claws well developed, almost 

 half as long as the claw itself. Length of body 12"""; 

 extent 117'"'". 



Remarks. The most conspicuous charaeter of the 

 present species is, the peculiar projections on the dorsal 

 surface of the body, of which not a trace is observed in any 

 of the other known species of the genus. Also in several 

 other respects it is perceptibly distinguished from all the 

 previously described species, whereas, in its anatomical 

 details it approximates, on the whole, very closely to the 

 following form. 



Description. The length of the body reaches as 

 much as 12""", with an extent of 117'"'", and the animal 

 pertains, therefore, to the largest species of the genus. 



The form (Pl. X, fig. 2) must certainly, on the whole, 

 be described as slender, though not nearly to the extent 

 characterising divers of the species described above; in 

 particular, the ambulatory legs, though of considerable length, 

 exbibit an unmistakeably robust appearance. The trunk 

 itself, when viewed from above (fig. 2 a), exhibits the usual 

 cylindrical form, and has the lateral processes rather large 

 and thick, as well as separated by well marked intervals. 

 On viewing the trunk trom the side (fig. 2 b), bowever, 

 a charaeter prominently distinctive of this species appears. 

 as each of the 3 foremost segments, behind, are seen to 

 rise into a rather high. sharply acuminated and somewhat 

 posteriorly directed projection. The back thus acquires a 

 peculiar, as it were, serrated appearance; hence the specific 

 designation. The cephalie segment is about as long as 

 the 3 following segments tåken together, and has a well 

 marked, though not very elongated ueck; the frontal part 

 is but very little expanded and hardly at all broader than 

 the medial segments of the trunk. 



The oculiferous tubercle (fig. 2 c) is somewhat elev- 

 ated. of obtuse conical fonn. and directed a little back- 

 yards, with the lenses of moderate size and placed about 

 mid-way up the tubercle. 



The proboscis (fig. 2 b) is comparativelv large and 

 thick, about as long as the cephalie segment and of the 

 usual cylindrical form, though tapering slightly in its outer 

 part. 



