Mr. G. Newport on new species of Myriapoda. 269 



than three times as long as the second, with a soft pulvus on its 

 under surface. Length 6 J inches. Cape Coast Castle, Africa. 



3. S. simillimus $ , mihi. Segments fifty-eight ; front subconvex, 

 smooth, without punctures on the labial margin, subquadrate, with 

 the external angles rounded ; sides of the prothorax triangular, 

 very acute ; legs very short, slender, with the joints of the tarsi 

 equal, without pulvilli. Length 6 J inches. Fantee, Africa. 



4. — nigerrimus, mihi. (Div. 1, h, Br.) Jet-black, shining, front 

 convex, labial margin deeply notched ; prothorax smooth, with 

 the sides triangular, rounded ; segments smooth. Length 2 inches. 



5. — ruficollis, mihi. (Div. 1, h, Br.) Black, with the head, pro- 

 thorax, penultimate and anal segments and a broad median dorsal 

 line bright red ; legs castaneous ; segments fifty-two, smooth, with 

 the posterior half of each short and elevated. Length 1|- inch. 

 New Holland. 



6. — caudatus, mihi. (Div. 1, h, Br.) Dark olive, with the antennae 

 and legs chestnut-coloured ; front mottled, with a median sulcus ; 

 segments forty-two, polished, without striae, the penultimate seg- 

 ment with a long, acute, recurved mucro ; body short and thick. 

 Leugtli 3 inches. Demerara. 



7. — marginatus. Say, sp. (Div. 2, h, Br.) North America. 



8. — annulatus, Say, sp. (Div. 2, a, Br.) North America. 



Genus Spirostreptus, Brandt, 



1 . S. gracilipes, mihi. (Div. 1 . Subdiv. 2, c, Br.) Chestnut-coloured ; 

 legs naked, slender ; front convex, with the labial border deeply 

 emarginated, with a triangular elevated line ; prothorax smooth, 

 with the sides narrowed and rounded anteriorly, with a single ele- 

 vated marginal line ; segments sixty-four, with the posterior half 

 of each substriated ; anal mucro short. Length 4^ inches. Phi- 

 lippine Islands. 



2. — curvicaudatus, mihi. (Div. 1. Subdiv. 2, A, Br.) Colour of dried 

 specimen fuscous ; segments sixty-one, with the posterior half of 

 each smooth, with the margin reddish ; penultimate segment with 

 a recurved, acute mucro ; labial margin of the front nearly straight; 

 prothorax with the sides tetragonal, with the anterior angle sub- 

 acute, and the posterior surface with faint striae. Length 4^ inches. 



3. — nigrolahiatus, mihi. (Div. 1. Subdiv. 2, d, Br.) Fuscous brown; 

 front of the head ferruginous, convex, with the labial border 

 blackened, emarginated, and armed with three distinct teeth ; legs 

 yellowish ; sides of the prothorax very much narrowed, with an 

 elevated border, but not striated or plicated ; segments fifty-nine, 

 smooth, polished, penultimate segment with a short, acute, re- 

 curved mucro. Length 4 inches. East Indies. 



4. — vittatus, mihi. (Div. 1. Subdiv. 2, a, Br.) Dark brown, with 

 the head, first seven segments of the body, and a ring around the 

 posterior half of each segment, red ; legs annulated, with the three 

 tarsal joints pulvillated ; the superior and posterior part of the 

 head with a partially concealed elevated transverse band of closely 

 arranged longitudinal striae; prothorax with a broad, flattened. 



