PACIFIC COAST OLIGOCH MTA. 67 
the cesophagal epithelium neither being furnished with ducts nor storage pockets (fig. 
18). 
The suprapharyngeal glands are posteriorly connected with the septal glands, 
not only with the nearest pair, but with all the pairs in the respective somites. In 
Ocnerodrilus Beddurdi I called the attention to this fact, but I was not able to point 
out the connection between all the glands, which connection, however, I do not doubt 
really exists in all genera of this family, and probably in most other Oligochieta. 
Septal glands(fig.2). As regards these glands our present species offers no great 
peculiarities different from species of Ocnerodrilus generally. There are four pair which 
surround the esophagus in the usual way in somites y, vi, vil and vill. ‘The glands are 
considerably lobed (fig. 1-2), and decrease in size posteriorly. That is, the pair in y 
is by far the largest, the one in vi is smaller and so on, the one in viii being much the 
smallest. This gradual decrease in size posteriorly, though the most common one in 
this class of Oligocheta, does, however, not always exist in all species. I have one 
species yet undescribed from Guatemala in which all the glands are of the same size. 
In our present species the glands are distinctly paired, but they lie so close together that 
that they appear in each somite as one single gland surrounding the intestine. In 
sections the glands are seen to be abundantly sealed with blood sinsues or larger 
vessels. 
These septal glands (fig. 2), connect one and all with the suprapharyngeal 
gland, being, so to say, superposed on several main longitudinal muscular bands con- 
necting the “hemmed glands with the body-wall in somite ix. Wide and narrow 
ducts follow these muscles, causing the secretions of the septal glands not to empty in 
the alimentary canal in the respective somites in the glands, but in the pharyngeal 
cavity as shown in fig. 18. 
Fig. 2 is, as far as outlines are concerned, a correct representation of these 
glands from a section lateral to the cesophagus. Most details, however, are not filled 
out. The glands on the upper side are those above the cesophagus, the lower row 
again snase: below the esophagus, both opening on the upper side of the pharynx. 
The sete occur in couples of two, as usual, the distance between sete 1 and 1 
being about the same as the distance between 2 and 2. The shape is the usual sigmoid 
one found in Oenerodrilus, and the size is rather large. The free points are slightly 
corrugated. The sete occur in all somites after the first, but there are never any deyel- 
oped setze where should be the inner couples in xvii. Very small undeveloped tips 
may sometimes be seen close to and lateral to the male pore enclosed in the reserve 
bag, but even they are not always present. 
The blood vessels agree in all respects with those of Oecnerodrilus. There are 
two pair of hearts, one each in x and xi and one pair of connecting vessels in ix. 
Nephridia are found in all the somites except the first few anterior ones. In 
somites iii to vy the nephridia are very small and dwarfed, but from there 
on posteriorly they increase in size. Those in front of the clitellum are not fur- 
