78 bulletin: museum of comparative zoology. 



not rare, — more numerous than heretofore. Remains of echini unusually 

 scarce. Bryozoa scarce, but include branching and incrusting forms. Remains 

 of lamellibranchs rather numerous, but few gastropods recognized. Spicules 

 of Gorgonias. Proportion of recognizable remains seems rather less than in 

 the last. 



975 feet. — Color very light yellow brown. Sample shows more evidence of 

 being comminuted rock. Quartz sand scarcely perceptible. Ovules occasional, 

 and rounded grains very numerous. Foraminifera (Orbitoides and others) 

 abundant. A few pieces of coral were noted. Bits of echini occur, and facetted 

 fragments are numerous. Bryozoa not observed. Remains of lamellibranchs 

 numerous, but those of gastropods scarce. Seems to have been a loosely com- 

 pacted, rather coarse sand-rock. 



1 ,000 feet. — Color light yellowish brown. Quartz sand scarcely perceptible. 

 The sample contains a considerable proportion of coarse sand and fragments. 

 Ovules not noted, though rounded grains are numerous. Foraminifera of 

 several genera abundant, — Amphistegina, Orbitoides, the globular one, etc. 

 Bits of madrepore coral frequent. Annelid tubes and SerpulaQ) or Vermetus (?). 

 Fragments of tests of echini (Spatangus ?). Lamellibranchs as usual, and 

 gastropods not uncommon ; of the latter, Turritella, Natica ? Ccecum, and 

 Dentalium were recognized. Bryozoa present. Spicules of Gorgonia. 



1,025 feet. — Color very light yellow-brown. Trace of quartz sand. Sample 

 is fine calcareous sand with the coarser remains of organisms. Ovules not 

 noted, but rounded grains are common. Foraminifera very abundant. Small 

 bits of madrepore coral not infrequent. Both branching and incrusting bryozoa. 

 Lamellibranch remains as usual. Ccecum and Dentalium observed, and other 

 minute gastropods frequent. 



1,050 feet. — Color very light yellow-brown. Trace of quartz sand. No 

 ovules noted. Foraminifera form the principal constituent of the coarse part 

 of the calcareous sand. A few pieces of coral. Bryozoa as in last. Remains 

 of lamellibranchs common, but gastropods scarce. 



1,075 feet. — Color very light yellowish brown. Trace of quartz sand 

 stronger than in last. The sample is a very fine sand, with only a few frag- 

 ments in it too coarse to go through the sieve. In the residue there were 

 foraminifera, a few bits of coral, a single spine of an echinus, some bryozoans, 

 and more lamellibranch remains. Ovules are present in the sample, but very 

 scarce. 



1,100 feet. — Color light brownish gray. Trace of quartz sand. The sample 

 is a fine uncompacted calcareous sand, containing a much larger proportion 

 of coarse particles and fragments than the last. Ovules seem to be absent. 

 Foraminifera of several genera are numerous. Bits of madrepore corals arc 

 very numerous. Bryozoa of both branching and incrusting forms are not rare. 

 Lamellibranch shells and casts are present in abundance, but gastropods are 

 scarce. I noticed a few spines of echini also, and some of the facetted fragments 

 described in the earlier part of these notes. 



1,125 feet. — Color light brownish gray. Very slight trace of quartz sand. 



