Higher Animals

"Higher animals" is a catch-all term for vertebrates other than fish. This is rather self-congratulatory, since the so-called "lower animals" - fishes and invertebrates - are actually the dominant species on the planet, both in numbers and diversity! The four classes of higher animals are:

  • Amphibians - class Amphibia
  • Reptiles - class Reptilia
  • Birds - class Aves
  • Mammals - class Mammalia

Of these, amphibians are absent from marine environments ( with one or two exceptions. )


Diamondback Terrapin

There are few marine reptiles and even fewer in the cold North Atlantic. While it would be possible for a salt-water crocodile to swim up from the Caribbean, there is no record of one ever having done so. Nor are there any of the sea-snakes that are famous in the South Pacific. The only marine reptiles that are encountered in our waters are sea turtles.

The one exception to this is the little Diamondback Terrapin, Malaclemys terrapin. (right) This small turtle ( about 6 inches ) is found only in salt marsh environments. Adults are very strong swimmers and have even been noted in the ocean surf, although I don't think they venture offshore.




from AWOIS: 1607

NM47/66 -- DANGEROUS WRECK OF DREDGE DRYLAND, 62 FT. LONG. 22 FT. WIDE REPORTED SUNK IN ABOUT 90 FT. COVERED ABOUT 55 FT.

CL1540/78 -- MAR, OPR-C622-RU/HE-78; ITEM 4; INVESTIGATION BEGAN 30 AUGUST AND WAS COMPLETED ON 18 SEPTEMBER. EFFECTIVELY CLEARED TO MIN. OF 45.5 FT., (38.5 FT. ON A 40 FT. SHOAL), WITH NO HANGS ENCOUNTERED.

FE221/78-79 -- OPR-C622-RU/HE; ITEM 4; REQUIRED CLEARANCE TO 45 FT. DUE TO POSSIBLE HAZARDS ON THE BOTTOM. 1 MILE, RADIUS CIRCLE DRAGGED TO 45 FT. EXCEPT TO 38 FT. ON 40 FT. SHOAL (SEE AWOIS NO.00752) NW OF AMBROSE LIGHT TOWER. NO HANGS ENCOUNTERED. RECOMMENDED THAT CLEARED AREA BE CHARTED WITH GREEN TINT WITH 45 FT. CLEARANCE NOTE WHERE APPROPRIATE.

H10224/86-87 -- OPR-C121-WH-86-87; WRECK FOUND DURING MAIN SCHEME HYDROGRAPHY AND SIDE-SCAN SONAR OPERATION 850M EAST OF REPORTED POSITION; SIX DIVES PERFORMED; 2-15 FT VISIBILITY; PNEUMATIC DEPTH GAUGE LEAST DEPTH OF 86 FT TAKEN ON TOP OF A 20 FT LONG DREDGE PIPE FLOAT FOUND 841.6M EAST OF AWOIS POSITION; WRECK SITE REVEALED PIPES, FLOATS, AND DREDGING EQUIPMENT. (UPDATED MSD 4/91)