168 CALIFORNIA ACADEMY OF SCIENCES. 
GENERAL REMARKS. 
I consider this a subspecies of Sparganophilus Benhami, at least until a closer 
investigation of better material may reveal other characters, if any there are. Spar- 
ganophilus guatemalensis is one of the smaller species about 10 cm. long by 2 mm. 
wide; the specimens were considerably stretched. Color is deep flesh, with an intense 
deep, dark violet lustre, much darker than in any other species and well preserved in 
alcohol, in which the specimens appear blackish violet. 
Setw are lateral and dorsal. 
Clitellum extends from xvi-xxvi, but cannot be well defined on the ventral 
side. The tubercula pubertatis are in the shape of two parallel ridges extending from 
Xviii to xxii or specimens from Patal and Coban, which I take to belong to the same 
species as those from Los Baiios in the City of Guatemala. 
INTERNAL CHARACTERS. 
Of these I could only distinguish a few. The spermathece are in three pairs, 
one.each in vii, vili, ix, opening in the anterior intersegmental groove. The apical 
end in the fully developed spermatheca is very wide, flattened like a mason’s trowel. 
Several of the spermathecz possessed a slit or opening in the apical end which com- 
municated with a longer or shorter sac, continuous with the exterior lining of the rest 
of the spermatheca. ~ It is possible that this is only a result of maceration, as I have 
seen nothing like it in other species of Sparganophilus, and it is not probable that we 
here have an analogy with the spermathecs of Enchytreeus or Sutroa, where this 
organ communicates with the intestine. 
Prostates are found in four pairs and situated in somites xxiv—xxvil or one 
somite further back than in Sp. Benhami. This in specimens from Sapote. If this 
character holds good it is one of considerable importance. 
Hearts were in vill, ix, xX, xi strongly developed, but not filling the ccelom. 
Some of the Guatemala Sparganophili possessed only three pair of hearts in somites 
ix, X, xi, with the ventral vessel branching in xy/xvi. Those were specimens from 
Los Arcos. Others again from Amatitlan possessed the hearts in x, xi, xii, xiii, with 
the ventral vessel divided in xv/xvi, while those from Los Banos, Guatemala City, had 
the ventral vessel branched in xiv/xv. I believe those from Amatitlan and Los 
Arcos belong to different species, but, as all the specimens are lost, I can only eall 
attention to the differences and to the importance of further investigations. 
Sparganophilus carneus n. subsp. 
Habitat. Mississippi river near Clayton, Iowa, in soil at the water’s edge, 
under pieces of boards and lumber. Numerous specimens at end of August, 1890, 
only few of which were adult. 
General remarks. It is probable that this is only a northern form of Sparga- 
nophilus Benhami, from which species it differs principally in the form of the sperm- 
athece, and by a much lighter color. The specimens at my command were not in proper 
condition and the shape and position of the tubereula pubertatis could not be made out. 
