718 Dr.Robert Lucas: Bericht über die wissensch. Leistungen im 
Melodeus nov. gen. (Charakt. Posterior spinning-mamillae as long as or shorter 
than abdomen,; segments equal in length. Legs shorter, stout, especially 
the femora. Fang-groove with a single row of teeth on outer margin and 
numerous cuspules towards base. Tarsi I. and II. distinetly scopulate, with 
central series of long setae. Üoxa of pedipalp furnished with 7—10 
curved claviform spines. Base of mandibles with 3 or 4 isolated bristles 
incrassate at the base. Diameter of anterior central eyes equal to or 
scarcely less than axis of anterior laterals.) Piekard Cambridge, Proc. 
Zool. Soc. London, 1896 p. 758 sanguineus p. 758, Abb. Taf. XXXIL Fig.]1, 
4, 7, Taf. XXXV Fig. 1 (Santarem). niger p. 759 Abb. Taf. XXXIII Fig. 2, 5 
Neodiplura nov. gen. (No Iyra or peeten on coxa of pedipalp and base of mandibles 
respectively. Tarsi and protarsi I. and II. fairly densely and entirely 
scopulate; the former with no central series of setae; the latter with spines 
amidst the scopulae. Tarsi III. and IV. densely and entirely, protarsi III 
and IV slightly and towards apex, scopulate. Tarsal claws 3, superiors 
armed with a double series of denticles) Pickard Cambridge, Proc. Zool. 
Soc. London, 1896 p. 755 Anmerkung, jelskiüi p. 755 $Q Abb. Taf. XXXV 
Fig. 5, 10, 11, 14 (Peru). 
Unterschiede von den verwandten Gattungen: 
A. Coxa des Pedipalpus und Basis der Mandibel mit Stridulations- 
organen. 
1. Tarsale scopula ohne centrale Reihe langer Borsten. 
Trechona C.K. 
2. Tarsale scopula mit centraler Reihe langer Borsten. 
a. Beine lang, dünn. Terminalsegment des hinteren Spinn- 
warzen-Paares länger als eins der basalen. 
Harmonicon nov. gen. 
b. Beine kurz und dick. Alle drei Segmente des hinteren 
Spinnwarzen-Paares fast gleich. Melodeus n. g. 
B. Coxa des Pedipalpus und Basis der Mandibeln ohne Stridulations- 
organe. Neodiplura n.g. 
Paratropis papilligera Pickard Cambridge, Proc. Zool. Soc. London 1896 p. 723 
Sg Abb. Taf. XXXIV Fig.1, 6, 7, 8, 23, Tat. XXXV Fig. 17 (Santarem, 
Lower Amazons). 
Stephanopsides brasiliana Keys. Pickard Cambridge, Proc. Zool. Soc. London 
1896 p. 1010 Abb. Taf. LII Fig. 4 (Amazonas). 
Santaremia n.g. (Anterior row of eyes straight or nearly so. Legs of first pair 
longer than those of the fourth. Four pairs of sternal sigilla visible. 
lst at base of labial plate; 2nd marginal; 3rd submarginal; 4th remote from 
margin. Posterior pair of spinners not longer than width of sternum. 
Carapace gibbous (in profile) behind the eyes. Patella and tibia IV shorter 
than carapace. Patella and tibia I equal to or longer than carapace. 
Legs elothed with short hairs. Protarsus and tarsi III and IV much nar- 
rower, less spatuliform than I and III. Habits terrestrial, forming silk- 
lined burrows in the ground) Pickard Cambridge, Proc. Zool. Soc. London 
1896 p. 746, pococki p. 746 Q Abb. Taf. XXXIII Fig. 8, 9, 13, Taf. XXXIV 
Fig. 20, Taf. XXX’ Fig. 12 (Santarem), nebst biologischen Notizen, longipes 
p- 749 in der Anmerkung (von Trinidad). 

