s ▁Category : S cient ists ▁at ▁P AR C ▁Category : M ass achusetts ▁Institute ▁of ▁Technology ▁al umn i ▁Category : L isp ▁people <0x0A> </s> ▁The ▁list ▁of ▁ship w re cks ▁in ▁January ▁ 1 8 5 0 ▁includes ▁ships ▁s unk , ▁found ered , ▁w reck ed , ▁ground ed , ▁or ▁otherwise ▁lost ▁during ▁January ▁ 1 8 5 0 . ▁▁ 1 ▁January ▁▁ 2 ▁January ▁▁ 3 ▁January ▁▁ 4 ▁January ▁▁ 5 ▁January ▁▁ 6 ▁January ▁▁ 7 ▁January ▁▁ 8 ▁January ▁▁ 9 ▁January ▁▁ 1 0 ▁January ▁▁ 1 1 ▁January ▁▁ 1 2 ▁January ▁▁ 1 3 ▁January ▁▁ 1 4 ▁January ▁▁ 1 5 ▁January ▁▁ 1 6 ▁January ▁▁ 1 7 ▁January ▁▁ 1 8 ▁January ▁▁ 1 9 ▁January ▁▁ 2 0 ▁January ▁▁ 2 1 ▁January ▁▁ 2 2 ▁January ▁▁ 2 3 ▁January ▁▁ 2 4 ▁January ▁▁ 2 5 ▁January ▁▁ 2 6 ▁January ▁▁ 2 7 ▁January ▁▁ 2 8 ▁January ▁▁ 2 9 ▁January ▁▁ 3 0 ▁January ▁▁ 3 1 ▁January ▁ ▁Un known ▁date ▁ ▁References ▁▁ 1 8 5 0 - 0 1 ▁ ▁Sh ip w re cks 0 1 <0x0A> </s> ▁Cal y cop is ▁is ▁a ▁genus ▁of ▁but ter f lies ▁in ▁the ▁family ▁Ly ca en idae . ▁Mass ively ▁split ▁up ▁by ▁Kurt ▁Johnson ▁in ▁ 1 9 9 1 , ▁most ▁modern ▁authors ▁consider ▁the ▁changes ▁proposed ▁at ▁that ▁time ▁to ▁be