1920] Chamberlin: Myriopod Fauna of Bermuda 281 



Ocelli fourteen to twenty-five, in four or five series: e. g."l+4, 4, 3, 2; 

 1+5, 5, 4, 3; 1+5. 5, 4, 4, 3; 1+6, 5, 5, 5, 3. Single ocellus suboval, 

 much largest, well separated from the others. Ocelli of most dorsal 

 row largest, the others decreasing gradually and usually uniformly 

 ventrad. Organ of Tomosvary on ventral surface ventrocephalad of 

 eye-patch, in size about equalling one of the smaller ocelli. 



Prosternum 1.73 ± times wider than long. Distance between 

 chitinous spots not quite twice the width at level of mesal incision or 

 interval; 2.23 ± times the dental line. Teeth 4+4 to 8+8, mostly 

 5+5 or 6+6 and frequently 5 + (), a small extra tooth appearing in the 

 diastema which normally separates the outermost tooth on each side 

 from the others, or sometimes two, 6+8, the odd tooth or teeth most 

 often noted on the right side. Teeth distally rounded, each commonly 

 appearing to be separately a little elevated. Alternate teeth often 

 reduced. Ectal spine long and acute, truly spiniform, situated just 

 back of the diastema on each side. When the larger numbers of teeth 

 are present, one or more commonly appear in the diastema, thus 

 apparently obliterating it, but the spine always retains the normal 

 position. 



Posterior dorsal plates under a lens commonly appearing tuberculate 

 or rugose, the anterior ones smoother. Posterior angles of ninth, 

 eleventh and thirteenth plates strongly produced. Widths of head and 

 of first, third, eighth, tenth and twelfth plates to each other nearly as 

 35 : 35 : 34 : 35 : 35 : 35, the sides being nearly parallel over much of 

 length. A specimen 24 mm. long has the tenth plate 3.5 mm. wide, the 

 body thus only (i.S times longer than wide in this case. 



Coxal pores transversely elongate, from elHptic to oblong or key-hole 

 shaped: 5, 7, 7, 5 to 7, 9, 9, 7, other arrangements noted being 6, 8, 8, 6 

 and 7, 8, 8, 7. Sometimes two small pores appear side by side in the 

 most proximal position. 



r £ , (). <J. 3,2,1, , , . , . 



-vSpnies ot hrst legs, — — -— -^; of second to tenth, mclusive, 



3 2 2 3'^'^ 



' ' ' ' ; of the elevanth and twelfth, - ' ' ' "' ~ ; of the thirteenth 



1, 0. 3, 2, 2 . , - ^ ^, 1, 0, 3, 1, 1 . ., ... 



; of the fourteenth. q q o ' *^^^^^^ -• ^r a third one 



scarcely evident; of anal, - ' ' ' .^' , claws 2. Last three pairs of 



(), 1, O, •), 1 



coxje laterally armed. 



Claws of female gonopods rather short, tripartite, the lobes short. 

 Basal spines 2 + 2, rather long, of about equal width from base to begin- 

 ning of the short, acuminate tip which occupies only about one-fourth 

 of total length, the sides parallel or a little incurved. 



Length, 18 to 27 mm. 



Praematurus — Antennae consisting of forty-one articles. Each eye 

 consisting of ten ocelli, thus, 1 +4, 3, 2. 



