$46 



MYRIAPODA. 



Gen. 3. SPHAUOBOLUS. Brandt. 

 2d, 3d, 4th, and 5th joint of antenna short, 

 roundish, equal ; the 2d rather longer than 

 the rest, the 5th and 6th nearly equal. 



Gen. 3. SPEROSTREPTUS. Brandt. 

 Lower lip with a sernilunar pit in the middle 

 and without any tubercles. Eyes many, in 

 lunate tubercles. 



Gen. 4. SPEROPCEUS. Brandt. 

 Lower lip with two transverse oblong tubercles 

 separated by a transverse groove. 



Gen. 5. SI>EROCYCLISTUS. Brandt. 

 Lower lip flat, with tubercles placed in an im- 

 pression in the centre of its base. 



Fam. 2. CRASPEDOSOMAD.S:. 

 Body cylindrical (striated), consisting of many 

 joints, each formed by a single piece, an- 

 tennae slender. Legs 48 pairs or more. 

 Eyes many, in a linear series or triangular 

 patch. 



Gen. 1. CRASPEDOSOMA. Leach. 

 Body elongate, depressed. Rings with a com- 

 pressed lateral edge. Eyes in a triangular 

 patch. 



Gen. 2. CYLINDP.OSOMA. Gray. 

 Body elongate, quite cylindrical, with very in- 

 distinct longitudinal stripe. Eyes in a small 

 oblong, kidney-shaped patch. 



Gen. 3. REASIA. Gray. 

 Body subcylindrical, striated longitudinally. 

 Eyes in a nearly linear patch. 

 Gen. 4. CAMBALA. Gray. Platyulus, 



Gervaise. 



Body rather depressed. Eyes in a double line 

 on each side of the back of the head. 



Fam. 3. POLYDESMID^;. 



Legs 31 pairs. Eyes none or only single tu- 

 bercles, situated just on the outer side of the 

 tentacles. 



Gen. 1. POLYDESMUS. Latr. 

 Body elongate, depressed : rings slightly edged 

 at the sides, forming an interrupted margin. 

 Antennae with rather long joints. 



Gen. 2. FONTARIA. Gray. 

 Like Polydesmus, but the margin of the body 

 is rude, and forms a continuous edge. 



Gen. 3. STENONIA. Gray. 

 The body slender, the rings subquadrate, with 

 toothed extended lateral edges. 



Gen. 4. STOSATEA. Gray. 

 Body slender, subcylindrical ; the lateral mar- 

 gin forming a very slight ridge. 



Fig. 305. 



Fam. 4. GLOMERID^:. 

 Body depressed; rings 11; semi- 

 lunar. Eyes 8, placed in an 

 arched line on each side of 

 the head. Antennae inserted 

 on the upper front part of the 

 head. 



Gen. 1. GLOMERIS. Latr. 

 The first dorsal ring striated in 

 the middle of the side. (Fig. 

 305.) 



Gen. 2. LAMISCA. GRAY. Glomer is, @. 

 Brandt. 



Fam. 5. ZEPHRONIAD^E. 



Body depressed ; rings 12 ; semilunar. Eyes 

 many in a circular group. Antennae on the 

 side of the head. (Fig. 306, ab c d.) 



Fig. 306. 



Gen. 1. ZEPHRONIA. Gray. Sphceropocus. 



Brandt. 



Antennae 6-jointed, penultimate joints short, 

 last larsest, oblong, rounded at the tip. 

 (Fig. 306.) 

 Gen. 2. SPHJEROTHERTA. Brandt. Zephronia, 



part. Gervais. 



Antenna 7-jointed, 6th joint nearly oblong, 

 last joint smallest, truncate at the tip. 



Fam. 6. POLYXENID.&. 



Body depressed ; rings 6 ; soft, semilunar, 

 with a tuft of scales on each side ; feet 12-12. 

 Eyes many in a group. 

 Gen. 1. POLYXENUS. Latr. (Fig. 307.) 



Fig. 307. 



Polyxenui laguna. 



Order II. CHILOPODA. Latr. 

 Antennae of 14 joints or more. Segments of 

 the body flattened, each bearing only one 

 pair of feet. 



Fam. 1. SCUTIGERID.S:. 



Antennae filiform, very long. Legs very long. 

 Eyes reticulate. 



Gen. 1. SCUTIGERA. Lamarck. 

 Feet 15 pairs or more. (Fig. 308, Scutigera 

 livida.) 



