58 



along the dorsal margin from Ijase to tip — in tarsus to the insertion of the 

 claws — , with the exception of the trochantin of the fourth pair of legs, which is 

 measured from the base to the articulate membrane ventrally, and that of the first 

 pair, which in Chelifer Geof. is measured from the base to the anterior condylus. 

 When the length of the body is spoken of, the length from the front margin of 

 the head to the tip of the abdomen is meant. Care must be taken, that the joint 

 of the palps are as far as possible measured, when placed in a horizontal plane. 

 To get exact measurements of the legs it is necessary to dissect the legs in question 

 (I and IV) off, but if they are put under a glass-cover, care must be taken, that 

 they are not compressed by its weight, f. inst. by putting a tiny piece of wood 

 beneath the glass, as proposed by Hansen. Under my examination of a species 

 I always felt obliged to take off the one antenna as well as one of the first and 

 one of the fourth pair of legs, or else it was quite impossible to study the 

 minute structures of the antennae, the claws and the terminal lateral hairs of the 

 tarsi. I have as far as possible always given drawings of the left antenna, palps 

 and legs. 



in. Synopsis of families and subfamilies,') 



1. The antennae large; the distance between their 



exterior hind corner at least as long as -/;i of 

 the posterior margin of céphalothorax. Serrula 

 exterior at least distally free. Tarsi IV two-jointed Hemictenodactijli Balz. 



2. Tarsi of the first pair are one-jointed Chthoniidae Hans. 



'6. Antennae without galea Cbthoniinae Dad. 



3. Antennae with three galeae Tridenchthoniinae Hans. 



2. Tarsi of the first pair are two-jointed Obisiidae Hans. 



4. Antennae without galea Ohisiiiiae Dad. 



4. Antennae with galea Pseudobisiinae Hans. 



') Mr.'s EUingsens establishment of a new genus Feaella mirabilis Ell. (72), as the representative 

 of a new family, will make a few modifications in the above s^'nopsis necessary. This new family is 

 most naturally placed under the Panctenodactgli between the Garypidae Hans, and the Cheliferidac 

 Hag., as it has all tarsi one-jointed and four eyes. The structure of the body is most remarkable, as 

 the front margin is divided into six, large rounded eminences, as the two pair of strongly vaulted 

 eyes are situated on lateral productions, and as the first abdominal tergite is most complicated, being 

 independent and covering the base of the cephalothora.v; in addition to these features an upper and 

 lower row of I.t and 14 sclerites respectively along lateral margins of the abdomen, are observed, and 

 the eleventh tergite, which is completely fused with its corresponding stcrnite, is placed ventrally. 

 Antennae as in Panctenodactgli, but without a lamina exterior and with a most remarkable galea. 

 The maxillae are verj' elongated and the palps, the hand of which is extremely short, appear to be 

 very degenerated. The first pair of legs are very similar to that of the Garypidae Hans, as far as the 

 shape of the basal femoral part is concerned, but have their long tarsi one-jointed. The fourth pair of 

 legs are remarkable on account of its similarity to the first pair and the well developed articulation 

 between the two femoral parts. 



