20 CHILOPODA. 
striped appearance to the animals. Moreover, the anal segment and all the legs are 
flavous or ochre-yellow, and the head-region is generally noticeably darker-coloured 
than the opposite end of the body. ‘The variation in colour does not seem to be 
connected with distribution, since specimens from the same locality show immense 
individual variation. 
It may be that this species will prove to be based upon young specimens of S. heros: 
but the evidence at my disposal does not support this supposition; for the large 
Californian specimens that I refer to S. copeana have all the appearance of being adult, 
and specimens from the same locality ranging from 90-130 millim. present no varia- 
tion in the characters given above as distinguishing this species from S. heros; and, 
conversely, Texan specimens of S. heros ranging from 108-140 millim. are also alike in 
these particulars. 
I may add that the species named S. polymorpha by Wood may prove to be the 
same as S. copeana, in which case the former name has the precedence. But S. poly- 
morpha is unknown to me, and I must follow the example of my predecessors in adding 
it to the synonyms of S&. heros. 
I have examined fourteen specimens from Mexico: six, 78-85 millim., from 
Dr. Gustav Eisen’s collection; three from Chihuahua (Montagu-Kerr), 70-93 millim. ; 
two from Ventanas (Forrer), 65-91 millim.; one from Amula (AH. H. Smith), 101 
millim.; and two from Tres Marias Islands (forrer), 78-85 millim. 
The British Museum also has an example, 104 millim. in length, from San Diego, 
Texas, obtained by Mr. William Taylor. 
Subsp. gaumeri, nov. 
? Scolopendra pachypus, Bollman, Bull. U.S. Nat. Mus. no. 46, p. 198 (1893). (?? pachypus, Kohlr.) 
Hab. British Honpuras (Colonial Exhibition) ; Honpunas, Bonacca I.,in the Bay of 
Honduras (Gaumer). 
This subspecies is based upon some specimens closely allied to the typical S. copeana, 
but possibly specifically distinct from it. They are, however, in rather a bad state of 
preservation, and I propose at present to regard them merely as a subspecies. They 
differ from S. copeana in the absence of a sulcus on the anal tergite, and in the greater 
shortness of the pleural process. ‘Three specimens: one, the type, from Honduras, 
measures 104 millim.; two from Bonacca Island, 78-88 millim. It appears to me 
probable that the specimen recorded from ‘Truxillo as §. pachypus by Bollman is a 
representative of this subspecies. 
10. Scolopendra sumichrasti. (Tab. II. figg. 4, 4 a.) 
Scolopendra sumichrasti, Saussure, Mém. Soc. Phys. Geneve, xv. p. 885, t. 7. fig. 46 (1860); 
Humb. & Sauss. Rev. et Mag. Zool. 1869, p. 157 *; Miss. Sci. Mex., Myriop. p. 181°. 
