A NEW AND ANNEOTANT TYPE OF CHILOPOD. 447 



class ; and the second pair of guathites are lengthened 

 especially with regard to the second (femoral) segment to 

 reach the mouth, which lies relatively far forwards. 



Order Scutigeromorpha (characters as above). 

 Oue family — Scutigerida3 (Scutigera). 



EXPLANATION OF PLATE 23, 



Illustrating Mr. Pocock's paper, " A New aud Aunectaut 

 Type of Chilopod." 



(Tlie figures, depicting the structural features of Craterostignius tas- 

 maniauus, were drawn by Mr. Pocock from the specimens of this centipede 

 which are preserved in the Natural History Museum.) 



i'lG. 1. — Dorsal view of anterior extremity, c. Ceplialite or head shield. 

 0. Eye. sf. Frontal suture, a. Antenna, bp. " Basal plate " = tergum of 

 toxicognatli. pi. Pleural sclerite of toxicoguath. ex. p. Coxal plate. 

 /. Femur or third segment, p. Patella or fourth segment, t. Tibia or fifth 

 segment, cl. claw or sixtli segment of toxicognath. 1, 2, 3. Terga of first, 

 second, and third somites. 



Fig. 2. — Ventral view of toxicognaths, showing the praecoxal processes of 

 the coxal plate {ex. p.), the second segment or trochanter (^a), which is fused 

 with the third segment or femur (/. ), the prseaxial teeth of the latter, and 

 the completeness of the fourth and fifth segments {p., t.) on the post-axial 

 side of the appendage. 



Ftg. 3. — Lateral view of head and anterior extremity of body. Lettering 

 of head and toxicognath as in Fig. 1. 1 — 7. Terga of anterior seven somites, 

 numbers 3 and G being without sternal representatives. 1' — 5'. Sterna of 

 anterior five leg-bearing somites. s. Stigmatic, and ms., metastigmatic 

 sclerite. pi. m. Membrane of pleural area. ex. Coxa or basal segment of 

 leg. pcx. praecoxal sclerite. /«. prsesternal sclerite. 



Fig. 4, — Lateral view of posterior extremity of body. 15 — 21. Terga of 

 fifteenth to twenty-first somites. 10' — 15'. Sterna of tenth to fifteenth leg- 

 bearing somites. The rest of the lettering as in Fig. 3. 



Fig. 5. — Dorsal view of last leg-bearing somite with ano-genilal capsule 

 {uff.) projecting from its posterior extremity. L Tergal area of somite. 

 1 aud 3. First aud base of third segment of leg of fifteenth pair. 



