140 



vrid', men lidet fremspringende. 3die Bagkropssegments 

 Sideplader bagtil gaaende ud i 2 triangulære ved en Uå- 

 randning skilte Fortsatser, den øverste størst. Øinene smalt 

 nyreformige, eller næsten lineære, sortbrune. Iste Par Fø- 

 lere med kurt og tykt Skaft. Bisvøben forlænget, bestaaende 

 af 9 Led. Di 3 bagre Podpar forholdsvis korte og robuste 

 med bredt, næsten cirkelformigt Hofteled. Sidste Par Hale- 

 fødder forholdsvis korte, ueppe overragende det foregaaende 

 Par. Ealevedhænget klovet til Midten. Længden indtil 

 16™ 



Findested. Station 366. 



Bemærkninger. Denne Fonn staar vistnok meget 

 nier Knivers Anonyx Vahlii, hvortil Goes henfører den, 

 men er dog utvivlsomt artsforskjellig. Foruden ved sin 

 langt betydeligere Størrelse og mere undersætsige Krops- 

 form, kjendes den meget let i alle Aldre ved den eiendom- 

 melige Form af 3die Bagkropssegments Sideplader. der ikke 

 som hos hin Art danner bagtil en jevnt tilrundet Udbugt- 

 ning. men gaar ud i 2 spidse Takker, hvorfra ogsaa den 

 af Sp. Bate foreslaaede Artsbenævnelse er hentet. 



Beskrivelse af Hunnen. Legemet er (se Pl. XII, 

 Fig. 1 ) i Sammenligning med den anden Art af temmelig 

 plump Form. med jevnt hvælyet Rygflade og ualmindelig 

 hoie Epimerer. 



Hovedet er forholdsvis lidet. betydelig kortere end 

 IsteForkropssegment og har Sidevinklerne tilspidsede, skjøndt 

 ikke meget fremspringende. En stor Del af dets Sider til- 

 ligemed samtlige Munddele (Lekkes fuldstændigt af Iste Par 

 Epimerer. 



Af Forkropssegmenterne er det Iste noget længere 

 end de nærmest følgende; de 2 sidste er atter noget kortere 

 end det foregaaende. De -t forreste Par Epimerer er over 

 dobbelt saa hoie som selve Kroppen og synes forholdsvis 

 smale, idet de gjensidigt for en stor Del dækker hinanden. 

 Det sidste af dem er som sædvanlig bagtil stærkt udrandet, 

 for at kunne optage det følgende Par, og er nedenfor Ud- 

 randniiigen uddraget i et skarpt Hjørne. 5te Par Epimerer 

 er af uregelmæssig firkantet Form og noget høiere end 

 bredt; de 2 folgende betydelig mindre. 



De :; forreste Bagkropssegmenter har Sidepladerne 

 brede og dybe. Paa 3die Segment danner de bagtil 2 

 skarpe Hjørner, hvoraf det nedre forestiller det egentlige 

 Sidehjørne, medens det ovre betydelig stærkere fremsprin- 

 gende danner en særegen triangulær Fortsats. Imellem 

 begge er dei- en jevn Udrandning. De folgende Bagkrops- 

 segmenter er oventil jevnt hvælvede. uden Fortsatser eller 

 Knuder. 



however hut slightly. Lateral plates of 3rd abdominal 

 segment jutting out posteriorly in the form of •_> trian- 

 gular projections, separated by a. distinct emargination, the 

 upper one the larger. Eyes narrow, reniform, or well- 

 nigh linear, dark-brown in colour. First pair of an- 

 tennæ with short and thick peduncle; secondary flag- 

 ellum elongate, consisting of 9 articulations. The 3 pos- 

 tei'ior pairs of legs short and robust, with basal joint 

 broad, almost circular. Last pair of caudal stylets com- 

 paratively short. projecting hut verv little, if at all. over 

 the preceding pair. Telson cleft to the middle. Length 

 reaehing 36'"'". 



Locality. 



Stat. 366. 



Remarks. — This form does indeed approximate very 

 cldsely Kroyer's Anonyx Vahlii. to which Goés has referred 

 it. hut is uevertheless without a doubt specifically distinct. 

 Let alone its far greater size and more thickset body, the 

 species may be easily recognized, in all stages of develop- 

 ment, by the peculiar form distinguishing the lateral plates 

 of the 3rd abdominal segment, which do not. as in the 

 forementioned species, exhibit behind an evenly rounded curve, 

 but jut forth as 2 acute teeth, a character indeed from which 

 the specific appellation suggested by Sp. Bate is tåken. 



Description of the Female. — The body (see Fl. 

 XII, tig. 1 ). as compared with that in the other species, 

 rather clumsy in form, with a, equably arched dorsal sur- 

 face and remarkably deep epimera. 



The head comparativelv small, niucli shorter than the 

 Ist thoracic segment, and with the lateral angles pointed, 

 though not to anv great extent projecting. A very con- 

 siderable portion of the sides, as also the oral appendages, 

 are entirely covered by the Ist pair of epimera. 



Of the thoracic segments, the Ist is somewhat longer 

 than those immediately succeeding it; the hist 2 being 

 also a trine shorter than the preceding. The 4 anterior 

 pairs of epimera are upwards of double the height at- 

 tained hv the body itself, and apparently slender, covering 

 one another, as they do, to a great extent. The last of 

 these pairs are as usual verv considerably emarginate pos- 

 teriorly, to serve for the reception of the succeeding pair. 

 appearing produced below, as an acute angle. The 5th 

 pair of epimera have an irregular, quadrate form. their 

 height slightly exceeding their breadth; the 2 succeeding 

 pairs are considerably smaller. 



The 3 anterior abdominal segments have the lateral 

 plates broad and deep. On the 3rd segment, they con- 

 stitute posteriorly 2 sharp corners, of which the lower rep- 

 resents the true lateral corner, whereas the upper. jutting 

 forth much more prominently, constitutes a characteristic 

 triangular projection. Between the two occurs a uniform 

 emargination. The succeeding abdominal segments are eipia- 

 bly arched above, without either projection or protuber- 

 ance. 



